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Publisher: Springer-Verlag (Total: 2348 journals)

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Showing 1 - 200 of 2348 Journals sorted alphabetically
3D Printing in Medicine     Open Access   (Followers: 1)
3D Research     Hybrid Journal   (Followers: 21, SJR: 0.222, CiteScore: 1)
4OR: A Quarterly J. of Operations Research     Hybrid Journal   (Followers: 10, SJR: 0.825, CiteScore: 1)
AAPS J.     Hybrid Journal   (Followers: 22, SJR: 1.118, CiteScore: 4)
AAPS PharmSciTech     Hybrid Journal   (Followers: 7, SJR: 0.752, CiteScore: 3)
Abdominal Imaging     Hybrid Journal   (Followers: 15, SJR: 0.866, CiteScore: 2)
Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg     Hybrid Journal   (Followers: 4, SJR: 0.439, CiteScore: 0)
Academic Psychiatry     Full-text available via subscription   (Followers: 24, SJR: 0.53, CiteScore: 1)
Academic Questions     Hybrid Journal   (Followers: 8, SJR: 0.106, CiteScore: 0)
Accreditation and Quality Assurance: J. for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 26, SJR: 0.316, CiteScore: 1)
Acoustical Physics     Hybrid Journal   (Followers: 11, SJR: 0.359, CiteScore: 1)
Acoustics Australia     Hybrid Journal   (SJR: 0.232, CiteScore: 1)
Acta Analytica     Hybrid Journal   (Followers: 7, SJR: 0.367, CiteScore: 0)
Acta Applicandae Mathematicae     Hybrid Journal   (Followers: 1, SJR: 0.675, CiteScore: 1)
Acta Biotheoretica     Hybrid Journal   (Followers: 4, SJR: 0.284, CiteScore: 1)
Acta Diabetologica     Hybrid Journal   (Followers: 18, SJR: 1.587, CiteScore: 3)
Acta Endoscopica     Hybrid Journal   (Followers: 1)
acta ethologica     Hybrid Journal   (Followers: 4, SJR: 0.769, CiteScore: 1)
Acta Geochimica     Hybrid Journal   (Followers: 6, SJR: 0.24, CiteScore: 1)
Acta Geodaetica et Geophysica     Hybrid Journal   (Followers: 2, SJR: 0.305, CiteScore: 1)
Acta Geophysica     Hybrid Journal   (Followers: 10, SJR: 0.312, CiteScore: 1)
Acta Geotechnica     Hybrid Journal   (Followers: 7, SJR: 1.588, CiteScore: 3)
Acta Informatica     Hybrid Journal   (Followers: 5, SJR: 0.517, CiteScore: 1)
Acta Mathematica     Hybrid Journal   (Followers: 12, SJR: 7.066, CiteScore: 3)
Acta Mathematica Hungarica     Hybrid Journal   (Followers: 2, SJR: 0.452, CiteScore: 1)
Acta Mathematica Sinica, English Series     Hybrid Journal   (Followers: 6, SJR: 0.379, CiteScore: 1)
Acta Mathematica Vietnamica     Hybrid Journal   (SJR: 0.27, CiteScore: 0)
Acta Mathematicae Applicatae Sinica, English Series     Hybrid Journal   (SJR: 0.208, CiteScore: 0)
Acta Mechanica     Hybrid Journal   (Followers: 21, SJR: 1.04, CiteScore: 2)
Acta Mechanica Sinica     Hybrid Journal   (Followers: 5, SJR: 0.607, CiteScore: 2)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 7, SJR: 0.576, CiteScore: 2)
Acta Meteorologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.638, CiteScore: 1)
Acta Neurochirurgica     Hybrid Journal   (Followers: 6, SJR: 0.822, CiteScore: 2)
Acta Neurologica Belgica     Hybrid Journal   (Followers: 1, SJR: 0.376, CiteScore: 1)
Acta Neuropathologica     Hybrid Journal   (Followers: 5, SJR: 7.589, CiteScore: 12)
Acta Oceanologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.334, CiteScore: 1)
Acta Physiologiae Plantarum     Hybrid Journal   (Followers: 2, SJR: 0.574, CiteScore: 2)
Acta Politica     Hybrid Journal   (Followers: 14, SJR: 0.605, CiteScore: 1)
Activitas Nervosa Superior     Hybrid Journal   (SJR: 0.147, CiteScore: 0)
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 7, SJR: 0.103, CiteScore: 0)
ADHD Attention Deficit and Hyperactivity Disorders     Hybrid Journal   (Followers: 23, SJR: 0.72, CiteScore: 2)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 9)
Administration and Policy in Mental Health and Mental Health Services Research     Partially Free   (Followers: 16, SJR: 1.005, CiteScore: 2)
Adsorption     Hybrid Journal   (Followers: 4, SJR: 0.703, CiteScore: 2)
Advances in Applied Clifford Algebras     Hybrid Journal   (Followers: 4, SJR: 0.698, CiteScore: 1)
Advances in Atmospheric Sciences     Hybrid Journal   (Followers: 37, SJR: 0.956, CiteScore: 2)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 19, SJR: 0.812, CiteScore: 1)
Advances in Contraception     Hybrid Journal   (Followers: 3)
Advances in Data Analysis and Classification     Hybrid Journal   (Followers: 52, SJR: 1.09, CiteScore: 1)
Advances in Gerontology     Partially Free   (Followers: 8, SJR: 0.144, CiteScore: 0)
Advances in Health Sciences Education     Hybrid Journal   (Followers: 28, SJR: 1.64, CiteScore: 2)
Advances in Manufacturing     Hybrid Journal   (Followers: 3, SJR: 0.475, CiteScore: 2)
Advances in Polymer Science     Hybrid Journal   (Followers: 44, SJR: 1.04, CiteScore: 3)
Advances in Therapy     Hybrid Journal   (Followers: 5, SJR: 1.075, CiteScore: 3)
Aegean Review of the Law of the Sea and Maritime Law     Hybrid Journal   (Followers: 6)
Aequationes Mathematicae     Hybrid Journal   (Followers: 2, SJR: 0.517, CiteScore: 1)
Aerobiologia     Hybrid Journal   (Followers: 3, SJR: 0.673, CiteScore: 2)
Aesthetic Plastic Surgery     Hybrid Journal   (Followers: 9, SJR: 0.825, CiteScore: 1)
African Archaeological Review     Hybrid Journal   (Followers: 16, SJR: 0.862, CiteScore: 1)
Afrika Matematika     Hybrid Journal   (Followers: 1, SJR: 0.235, CiteScore: 0)
AGE     Hybrid Journal   (Followers: 7)
Ageing Intl.     Hybrid Journal   (Followers: 7, SJR: 0.39, CiteScore: 1)
Aggiornamenti CIO     Hybrid Journal   (Followers: 1)
Aging Clinical and Experimental Research     Hybrid Journal   (Followers: 3, SJR: 0.67, CiteScore: 2)
Agricultural Research     Hybrid Journal   (Followers: 5, SJR: 0.276, CiteScore: 1)
Agriculture and Human Values     Hybrid Journal   (Followers: 14, SJR: 1.173, CiteScore: 3)
Agroforestry Systems     Hybrid Journal   (Followers: 20, SJR: 0.663, CiteScore: 1)
Agronomy for Sustainable Development     Hybrid Journal   (Followers: 12, SJR: 1.864, CiteScore: 6)
AI & Society     Hybrid Journal   (Followers: 8, SJR: 0.227, CiteScore: 1)
AIDS and Behavior     Hybrid Journal   (Followers: 14, SJR: 1.792, CiteScore: 3)
Air Quality, Atmosphere & Health     Hybrid Journal   (Followers: 4, SJR: 0.862, CiteScore: 3)
Akupunktur & Aurikulomedizin     Full-text available via subscription   (Followers: 1)
Algebra and Logic     Hybrid Journal   (Followers: 6, SJR: 0.531, CiteScore: 0)
Algebra Universalis     Hybrid Journal   (Followers: 2, SJR: 0.583, CiteScore: 1)
Algebras and Representation Theory     Hybrid Journal   (Followers: 1, SJR: 1.095, CiteScore: 1)
Algorithmica     Hybrid Journal   (Followers: 9, SJR: 0.56, CiteScore: 1)
Allergo J.     Full-text available via subscription   (Followers: 1, SJR: 0.234, CiteScore: 0)
Allergo J. Intl.     Hybrid Journal   (Followers: 2)
Alpine Botany     Hybrid Journal   (Followers: 5, SJR: 1.11, CiteScore: 3)
ALTEX : Alternatives to Animal Experimentation     Open Access   (Followers: 3)
AMBIO     Hybrid Journal   (Followers: 10, SJR: 1.569, CiteScore: 4)
American J. of Cardiovascular Drugs     Hybrid Journal   (Followers: 16, SJR: 0.951, CiteScore: 3)
American J. of Community Psychology     Hybrid Journal   (Followers: 28, SJR: 1.329, CiteScore: 2)
American J. of Criminal Justice     Hybrid Journal   (Followers: 7, SJR: 0.772, CiteScore: 1)
American J. of Cultural Sociology     Hybrid Journal   (Followers: 16, SJR: 0.46, CiteScore: 1)
American J. of Dance Therapy     Hybrid Journal   (Followers: 4, SJR: 0.181, CiteScore: 0)
American J. of Potato Research     Hybrid Journal   (Followers: 2, SJR: 0.611, CiteScore: 1)
American J. of Psychoanalysis     Hybrid Journal   (Followers: 21, SJR: 0.314, CiteScore: 0)
American Sociologist     Hybrid Journal   (Followers: 12, SJR: 0.35, CiteScore: 0)
Amino Acids     Hybrid Journal   (Followers: 8, SJR: 1.135, CiteScore: 3)
AMS Review     Partially Free   (Followers: 4)
Analog Integrated Circuits and Signal Processing     Hybrid Journal   (Followers: 7, SJR: 0.211, CiteScore: 1)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 5, SJR: 0.536, CiteScore: 1)
Analysis in Theory and Applications     Hybrid Journal   (Followers: 1)
Analysis of Verbal Behavior     Hybrid Journal   (Followers: 5)
Analytical and Bioanalytical Chemistry     Hybrid Journal   (Followers: 32, SJR: 0.978, CiteScore: 3)
Anatomical Science Intl.     Hybrid Journal   (Followers: 2, SJR: 0.367, CiteScore: 1)
Angewandte Schmerztherapie und Palliativmedizin     Hybrid Journal  
Angiogenesis     Hybrid Journal   (Followers: 3, SJR: 2.177, CiteScore: 5)
Animal Cognition     Hybrid Journal   (Followers: 19, SJR: 1.389, CiteScore: 3)
Annales françaises de médecine d'urgence     Hybrid Journal   (Followers: 1, SJR: 0.192, CiteScore: 0)
Annales Henri Poincaré     Hybrid Journal   (Followers: 3, SJR: 1.097, CiteScore: 2)
Annales mathématiques du Québec     Hybrid Journal   (Followers: 4, SJR: 0.438, CiteScore: 0)
Annali dell'Universita di Ferrara     Hybrid Journal   (SJR: 0.429, CiteScore: 0)
Annali di Matematica Pura ed Applicata     Hybrid Journal   (Followers: 1, SJR: 1.197, CiteScore: 1)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18, SJR: 1.042, CiteScore: 3)
Annals of Combinatorics     Hybrid Journal   (Followers: 4, SJR: 0.932, CiteScore: 1)
Annals of Data Science     Hybrid Journal   (Followers: 12)
Annals of Dyslexia     Hybrid Journal   (Followers: 10, SJR: 0.85, CiteScore: 2)
Annals of Finance     Hybrid Journal   (Followers: 30, SJR: 0.579, CiteScore: 1)
Annals of Forest Science     Hybrid Journal   (Followers: 7, SJR: 0.986, CiteScore: 2)
Annals of Global Analysis and Geometry     Hybrid Journal   (Followers: 1, SJR: 1.228, CiteScore: 1)
Annals of Hematology     Hybrid Journal   (Followers: 15, SJR: 1.043, CiteScore: 2)
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 12, SJR: 0.413, CiteScore: 1)
Annals of Microbiology     Hybrid Journal   (Followers: 11, SJR: 0.479, CiteScore: 2)
Annals of Nuclear Medicine     Hybrid Journal   (Followers: 4, SJR: 0.687, CiteScore: 2)
Annals of Operations Research     Hybrid Journal   (Followers: 10, SJR: 0.943, CiteScore: 2)
Annals of Ophthalmology     Hybrid Journal   (Followers: 11)
Annals of Regional Science     Hybrid Journal   (Followers: 7, SJR: 0.614, CiteScore: 1)
Annals of Software Engineering     Hybrid Journal   (Followers: 13)
Annals of Solid and Structural Mechanics     Hybrid Journal   (Followers: 9, SJR: 0.239, CiteScore: 1)
Annals of Surgical Oncology     Hybrid Journal   (Followers: 13, SJR: 1.986, CiteScore: 4)
Annals of Telecommunications     Hybrid Journal   (Followers: 9, SJR: 0.223, CiteScore: 1)
Annals of the Institute of Statistical Mathematics     Hybrid Journal   (Followers: 1, SJR: 1.495, CiteScore: 1)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 5, SJR: 0.834, CiteScore: 2)
Apidologie     Hybrid Journal   (Followers: 4, SJR: 1.22, CiteScore: 3)
APOPTOSIS     Hybrid Journal   (Followers: 8, SJR: 1.424, CiteScore: 4)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2, SJR: 0.294, CiteScore: 1)
Applications of Mathematics     Hybrid Journal   (Followers: 2, SJR: 0.602, CiteScore: 1)
Applied Biochemistry and Biotechnology     Hybrid Journal   (Followers: 43, SJR: 0.571, CiteScore: 2)
Applied Biochemistry and Microbiology     Hybrid Journal   (Followers: 17, SJR: 0.21, CiteScore: 1)
Applied Cancer Research     Open Access  
Applied Categorical Structures     Hybrid Journal   (Followers: 2, SJR: 0.49, CiteScore: 0)
Applied Composite Materials     Hybrid Journal   (Followers: 49, SJR: 0.58, CiteScore: 2)
Applied Entomology and Zoology     Partially Free   (Followers: 4, SJR: 0.422, CiteScore: 1)
Applied Geomatics     Hybrid Journal   (Followers: 3, SJR: 0.733, CiteScore: 3)
Applied Geophysics     Hybrid Journal   (Followers: 8, SJR: 0.488, CiteScore: 1)
Applied Intelligence     Hybrid Journal   (Followers: 12, SJR: 0.6, CiteScore: 2)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 4, SJR: 0.319, CiteScore: 1)
Applied Mathematics & Optimization     Hybrid Journal   (Followers: 6, SJR: 0.886, CiteScore: 1)
Applied Mathematics - A J. of Chinese Universities     Hybrid Journal   (SJR: 0.17, CiteScore: 0)
Applied Mathematics and Mechanics     Hybrid Journal   (Followers: 5, SJR: 0.461, CiteScore: 1)
Applied Microbiology and Biotechnology     Hybrid Journal   (Followers: 64, SJR: 1.182, CiteScore: 4)
Applied Physics A     Hybrid Journal   (Followers: 9, SJR: 0.481, CiteScore: 2)
Applied Physics B: Lasers and Optics     Hybrid Journal   (Followers: 24, SJR: 0.74, CiteScore: 2)
Applied Psychophysiology and Biofeedback     Hybrid Journal   (Followers: 8, SJR: 0.519, CiteScore: 2)
Applied Research in Quality of Life     Hybrid Journal   (Followers: 12, SJR: 0.316, CiteScore: 1)
Applied Solar Energy     Hybrid Journal   (Followers: 18, SJR: 0.225, CiteScore: 0)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 5, SJR: 0.542, CiteScore: 1)
Aquaculture Intl.     Hybrid Journal   (Followers: 23, SJR: 0.591, CiteScore: 2)
Aquarium Sciences and Conservation     Hybrid Journal   (Followers: 1)
Aquatic Ecology     Hybrid Journal   (Followers: 34, SJR: 0.656, CiteScore: 2)
Aquatic Geochemistry     Hybrid Journal   (Followers: 4, SJR: 0.591, CiteScore: 1)
Aquatic Sciences     Hybrid Journal   (Followers: 13, SJR: 1.109, CiteScore: 3)
Arabian J. for Science and Engineering     Hybrid Journal   (Followers: 5, SJR: 0.303, CiteScore: 1)
Arabian J. of Geosciences     Hybrid Journal   (Followers: 2, SJR: 0.319, CiteScore: 1)
Archaeological and Anthropological Sciences     Hybrid Journal   (Followers: 20, SJR: 1.052, CiteScore: 2)
Archaeologies     Hybrid Journal   (Followers: 12, SJR: 0.224, CiteScore: 0)
Archiv der Mathematik     Hybrid Journal   (Followers: 1, SJR: 0.725, CiteScore: 1)
Archival Science     Hybrid Journal   (Followers: 60, SJR: 0.745, CiteScore: 2)
Archive for History of Exact Sciences     Hybrid Journal   (Followers: 7, SJR: 0.186, CiteScore: 1)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 3, SJR: 0.909, CiteScore: 1)
Archive for Rational Mechanics and Analysis     Hybrid Journal   (SJR: 3.93, CiteScore: 3)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 5, SJR: 0.79, CiteScore: 2)
Archives and Museum Informatics     Hybrid Journal   (Followers: 142, SJR: 0.101, CiteScore: 0)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 5, SJR: 1.41, CiteScore: 5)
Archives of Dermatological Research     Hybrid Journal   (Followers: 7, SJR: 1.006, CiteScore: 2)
Archives of Environmental Contamination and Toxicology     Hybrid Journal   (Followers: 14, SJR: 0.773, CiteScore: 2)
Archives of Gynecology and Obstetrics     Hybrid Journal   (Followers: 16, SJR: 0.956, CiteScore: 2)
Archives of Microbiology     Hybrid Journal   (Followers: 8, SJR: 0.644, CiteScore: 2)
Archives of Orthopaedic and Trauma Surgery     Hybrid Journal   (Followers: 8, SJR: 1.146, CiteScore: 2)
Archives of Osteoporosis     Hybrid Journal   (Followers: 2, SJR: 0.71, CiteScore: 2)
Archives of Sexual Behavior     Hybrid Journal   (Followers: 10, SJR: 1.493, CiteScore: 3)
Archives of Toxicology     Hybrid Journal   (Followers: 17, SJR: 1.541, CiteScore: 5)
Archives of Virology     Hybrid Journal   (Followers: 5, SJR: 0.973, CiteScore: 2)
Archives of Women's Mental Health     Hybrid Journal   (Followers: 14, SJR: 1.274, CiteScore: 3)
Archivio di Ortopedia e Reumatologia     Hybrid Journal  
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2, SJR: 0.946, CiteScore: 3)
ArgoSpine News & J.     Hybrid Journal  
Argumentation     Hybrid Journal   (Followers: 5, SJR: 0.349, CiteScore: 1)
Arid Ecosystems     Hybrid Journal   (Followers: 2, SJR: 0.2, CiteScore: 0)
Arkiv för Matematik     Hybrid Journal   (Followers: 1, SJR: 0.766, CiteScore: 1)
Arnold Mathematical J.     Hybrid Journal   (Followers: 1, SJR: 0.355, CiteScore: 0)
Arthropod-Plant Interactions     Hybrid Journal   (Followers: 2, SJR: 0.839, CiteScore: 2)
Arthroskopie     Hybrid Journal   (Followers: 1, SJR: 0.131, CiteScore: 0)
Artificial Intelligence and Law     Hybrid Journal   (Followers: 11, SJR: 0.937, CiteScore: 2)
Artificial Intelligence Review     Hybrid Journal   (Followers: 15, SJR: 0.833, CiteScore: 4)
Artificial Life and Robotics     Hybrid Journal   (Followers: 9, SJR: 0.226, CiteScore: 0)
Asia Europe J.     Hybrid Journal   (Followers: 5, SJR: 0.504, CiteScore: 1)
Asia Pacific Education Review     Hybrid Journal   (Followers: 12, SJR: 0.479, CiteScore: 1)
Asia Pacific J. of Management     Hybrid Journal   (Followers: 16, SJR: 1.185, CiteScore: 2)
Asia-Pacific Education Researcher     Hybrid Journal   (Followers: 12, SJR: 0.353, CiteScore: 1)
Asia-Pacific Financial Markets     Hybrid Journal   (Followers: 2, SJR: 0.187, CiteScore: 0)
Asia-Pacific J. of Atmospheric Sciences     Hybrid Journal   (Followers: 19, SJR: 0.855, CiteScore: 1)
Asian Business & Management     Hybrid Journal   (Followers: 9, SJR: 0.378, CiteScore: 1)
Asian J. of Business Ethics     Hybrid Journal   (Followers: 9)
Asian J. of Criminology     Hybrid Journal   (Followers: 5, SJR: 0.543, CiteScore: 1)
AStA Advances in Statistical Analysis     Hybrid Journal   (Followers: 3, SJR: 0.548, CiteScore: 1)
AStA Wirtschafts- und Sozialstatistisches Archiv     Hybrid Journal   (Followers: 5, SJR: 0.183, CiteScore: 0)
ästhetische dermatologie & kosmetologie     Full-text available via subscription  

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Journal Cover
Acta Mechanica
Journal Prestige (SJR): 1.04
Citation Impact (citeScore): 2
Number of Followers: 21  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1619-6937 - ISSN (Online) 0001-5970
Published by Springer-Verlag Homepage  [2348 journals]
  • Dislocation-based description of the sliding of a free-surface emerging
           grain boundary
    • Authors: Jérôme Colin; Joël Bonneville; Jean Grilhé
      Pages: 3215 - 3222
      Abstract: The sliding phenomenon of a high-angle tilt boundary containing a disclination dipole emerging at the free-surface of a thin film deposited on a semi-infinite substrate is studied theoretically from a static point of view in the framework of a dislocation-based description. The formation from the surface of a dislocation in the boundary is investigated, and its different equilibrium positions are determined in the stress field of the disclination dipole. It is found that the formation of the dislocation in the stress field of the disclination is only possible for an inclined dipole with respect to the normal of the free-surface. Finally, the effects of the inclination angle and strength of the grain boundary disclination dipole on the stable and metastable equilibrium positions of the dislocation are analyzed.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2168-5
      Issue No: Vol. 229, No. 8 (2018)
       
  • Effect of nanotwin near a branched crack tip on crack blunting in deformed
           nanocrystalline materials
    • Authors: Tengwu He; Miaolin Feng
      Pages: 3223 - 3234
      Abstract: A theoretical model is established that mainly addresses the influence of nanotwin near the tip of branched crack on crack blunting in deformed nanocrystalline materials. Using the complex variable method of Muskhelishvili and conformal mapping technique, the solutions of complex potentials are derived in closed forms. The critical stress intensity factors for the emission of first lattice edge dislocation from the branched crack tip are obtained. The effects of typical parameters such as the relative length between the main crack and the branched crack, the angle between their planes as well as the relative thickness of the nanotwin band on the dislocation emission from the branched crack tip are evaluated in detail. The results indicate that the shorter branched crack is more easily induced to blunting through dislocation emission from its tip, while the longer main crack tends to propagate. The main crack shows a shielding effect to the tip of branched crack for the dislocation emission. Furthermore, the larger the relative thickness of the nanotwin band is, the easier is the dislocation emitted from the branched crack tip.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2158-7
      Issue No: Vol. 229, No. 8 (2018)
       
  • Electrostatic nonlinear bending, buckling and free vibrations of
           viscoelastic microbeams based on the modified couple stress theory
    • Authors: Mohamed A. Attia; Samir A. Emam
      Pages: 3235 - 3255
      Abstract: This paper presents a size-dependent, nonlinear beam model for bending, buckling and free vibrations of electrically actuated viscoelastic clamped–clamped microbeams. The modified couple stress theory is used to model the size effect. The Euler–Bernoulli beam model including von Karman geometric nonlinearity and intermolecular van der Waals and Casimir forces is adopted. The Boltzmann superposition viscoelastic model is used to simulate the linear behavior of the viscoelastic material. The governing integral–differential equation and corresponding boundary conditions are obtained using Hamilton’s principle. Galerkin’s discretization is used to obtain a reduced-order model of the problem. The quasi-elastic method is used to approximate the viscoelastic behavior. The model has been verified by comparing some results with those available in the literature, and a good agreement is obtained. The influence of the small size, creep modulus, relaxation time and intermolecular forces on the electrostatic bending, buckling and free vibrations are investigated and found significant.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2162-y
      Issue No: Vol. 229, No. 8 (2018)
       
  • Analysis of multi-crack problems by the spline fictitious boundary element
           method based on Erdogan fundamental solutions
    • Authors: Zhi Xu; Cheng Su; Zhongwei Guan
      Pages: 3257 - 3278
      Abstract: The Erdogan fundamental solutions are derived from an infinite plane containing a crack. When they are used in the formulation of the boundary element method (BEM), the stress boundary conditions on the crack surface are automatically satisfied and the singular behavior at the crack tip can be naturally reflected. Using the multi-domain technique, the multi-crack problem can be transformed into a series of single-crack problems involving displacement continuity conditions along common boundaries. In this paper, the displacements which are expressed in terms of the integral of a complex function in the Erdogan fundamental solutions are derived in closed-form expressions. Then, the multi-domain spline fictitious boundary element method (SFBEM) based on the above fundamental solutions is proposed and formulated for analyzing multi-crack problems. The computational accuracy and stability of the proposed method are verified by comparing the stress intensity factor (SIF) results of a double-inner crack problem with different inclined angles and crack lengths against those calculated by the finite element method. Also, the SIF results of a double-edge crack problem with different crack lengths are compared with those obtained from studies. Finally, the proposed method is applied to the analysis of the triple-crack problem, in which the shielding effects of multi-crack and stress contours are studied with different crack lengths and locations.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2160-0
      Issue No: Vol. 229, No. 8 (2018)
       
  • Nonlocal fully intrinsic equations for free vibration of Euler–Bernoulli
           beams with constitutive boundary conditions
    • Authors: Mohammad Tashakorian; Esmaeal Ghavanloo; S. Ahmad Fazelzadeh; Dewey H. Hodges
      Pages: 3279 - 3292
      Abstract: Fully intrinsic beam theory has presented a relatively new set of equations for modeling of one-dimensional structures. Although this method can be utilized as a useful tool for modeling beam-like structures, it is scale independent and cannot be accurately employed when the size of a structure becomes comparable with its internal characteristic length. In this paper, we develop nonlocal fully intrinsic equations for accommodating the small-scale effect and overcoming this limitation. The original fully intrinsic equations are thus reformulated using the nonlocal differential constitutive relations of Eringen. The so-called constitutive boundary conditions are considered. Here the generalized differential quadrature method is used for numerically solving the nonlocal fully intrinsic equations. Furthermore, applicability of the present formulations for free vibration of both uniform and nonuniform Euler–Bernoulli beams is discussed. Moreover, it is shown that the present formulation is accurate and useful for predicting the mechanical behavior of micro- and nanobeams.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2164-9
      Issue No: Vol. 229, No. 8 (2018)
       
  • Anisotropic mechanical properties of Si anodes in a lithiation process of
           lithium-ion batteries
    • Authors: Dan Wang; Yan Wang; Youlan Zou; Chunsheng Lu; Zengsheng Ma
      Pages: 3293 - 3303
      Abstract: High-capacity active electrodes, such as Si anodes in Li-ion batteries, undergo a significant volume deformation of up to \(\sim \)  400% during lithiation. Such a huge volume change could cause mechanical fracture and pulverization of electrode materials and result in harmful effects on their electrochemical performance. To have better understanding on this problem, the two-phase lithiation process of hollow core–shell and film structural electrodes is simulated by using a diffusion lithiation model. It is shown that the anisotropic hoop stress is larger than the isotropic one, which may easily induce damage of hollow core–shell negative electrodes. In addition, the anisotropic nature of mechanical properties can also remarkably magnify the edge stress intensity factor of hollow core–shell and film electrodes. These results on the morphological evolution and stress generation shed light on the design of novel and failure-resistant electrodes.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2169-4
      Issue No: Vol. 229, No. 8 (2018)
       
  • Gradient elasticity and size effect for the borehole problem
    • Authors: Haoxiang Chen; Chengzhi Qi; G. Efremidis; M. Dorogov; E. C. Aifantis
      Pages: 3305 - 3318
      Abstract: It has been shown recently that robust gradient models of elasticity offer an effective tool to resolve existing difficulties (e.g., elimination of singularities) or predict new experimentally observed phenomena (e.g., size effects) not captured by classical theory. The price that one pays for it, however, is the need to determine extra phenomenological coefficients and invent new boundary conditions associated with the gradient terms. The modest contribution of this note is to show that even the simplest possible gradient elasticity model may yield entirely different results for different higher-order boundary conditions used. This is demonstrated by considering the borehole problem, i.e., the determination of the state of stress and strain in an externally loaded or internally pressurized body containing a cylindrical hole. The standard practice of using variationally consistent boundary conditions leads to difficulties in physically interpreting them as well as in complex solution formulae without much physical insight. Alternative, mathematically less elegant arguments, as those employed here, lead to much neater formulas, usually consisting of a sum of the classical elasticity solution and an extra gradient term. These may easily be utilized to address engineering applications, ranging from processing/fabrication of metallic specimens at the micron and nanoscales to mining/drilling operations and tunneling excavation at geo-scales. The results are by no means conclusive, only suggestive of the various possibilities and choices that one can make at present. This, in itself, points to the pressing need of further work on the issue of extra boundary conditions with the aid of new novel experiments and accompanied multiscale simulations.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2109-3
      Issue No: Vol. 229, No. 8 (2018)
       
  • An embedded couple stress micro-/nano-obstacle with micro-inertia incident
           upon by SH-waves
    • Authors: H. M. Shodja; A. Ghafarollahi
      Pages: 3333 - 3354
      Abstract: An elliptic micro-/nano-obstacle bonded to an infinite body incident upon by SH-waves, where both domains are couple stress media with micro-inertia, is of major concern. The formulation of this problem in the mathematical framework of couple stress elasticity with micro-inertia leads to angular and radial Mathieu differential equations which are solved analytically. These equations carry two characteristic lengths which are peculiar to the discrete nature of each domain enabling the capture of size effect, dispersion phenomenon, as well as the enhancement of the accuracy of the results. For verification, the ratio of the semi-axis of the elliptic obstacle is set equal to 1, and the result associated with the circular fiber which was previously considered by Shodja et al. (Int J Solids Struct 58:73–90, 2015) is recovered. The distribution of the induced stresses along an elliptic obstacle boundary, depending on its major-to-minor semi-axis ratio (e.g., 2), can significantly differ from that pertinent to a circular one.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2171-x
      Issue No: Vol. 229, No. 8 (2018)
       
  • Analytical modeling of the coupled nonlinear free vibration response of a
           rotating blade in a gas turbine engine
    • Authors: P. A. Roy; S. A. Meguid
      Pages: 3355 - 3373
      Abstract: In this paper, we investigate the free vibration response of a rotating blade in a gas turbine engine. The blade is modeled as a tapered Timoshenko beam with nonlinear variations in its cross-section properties. The governing equations of motions are derived using Lagrangian mechanics and Rayleigh–Ritz method. These equations take into account centrifugal stiffening, axial and lateral coupling due to Coriolis effect, shear deformation, and rotary inertia. We examine the effect of the beam geometry upon its axial and lateral free vibration response. The effects of rotational speed, taper ratio, chord ratio, hub radius, and slenderness ratio on the natural frequencies are analyzed. The results of our analysis indicate that the taper ratio, slenderness ratio, and rotational speed of the beam govern its free lateral vibration response. The axial vibration of the beam is significantly affected by the slenderness ratio, but it is found to be independent of the hub radius.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2165-8
      Issue No: Vol. 229, No. 8 (2018)
       
  • Flow past a slippery cylinder: part 1—circular cylinder
    • Authors: S. J. D. D’Alessio
      Pages: 3375 - 3392
      Abstract: Part 1 of this two-part paper solves the two-dimensional problem of the unsteady flow of a viscous incompressible fluid past a circular cylinder subject to impermeability and Navier-slip conditions on the surface. The Navier-slip condition is characterized by the slip length, \(\beta \) . The flow is calculated using two methods. The first takes the form of a double series solution where an expansion is carried out in powers of the time, t, and in powers of the parameter \(\lambda =\sqrt{8t/R}\) where R is the Reynolds number. This approximate analytical solution is valid for small times following the start of the motion and for large Reynolds numbers. The second method involves a spectral-finite difference procedure for numerically integrating the full Navier–Stokes equations expressed in terms of a stream function and vorticity. Our results demonstrate that for small times and moderately large R the two methods of solution are in excellent agreement. Results are presented for Reynolds numbers 500 and 1000, and comparisons with the no-slip condition are made. The key finding is that a reduction in the drag coefficient results from the Navier-slip condition when compared to the no-slip condition. This reduction increases as \(\beta \) increases. In addition, the slip condition also leads to suppression in flow separation.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2175-6
      Issue No: Vol. 229, No. 8 (2018)
       
  • Flow past a slippery cylinder: part 2 - elliptic cylinder
    • Authors: S. J. D. D’Alessio
      Pages: 3415 - 3436
      Abstract: Part 2 of this paper is devoted to two-dimensional unsteady flow of a viscous incompressible fluid past an inclined elliptic cylinder subject to impermeability and Navier slip conditions on the surface. As in Part 1, the flow is calculated using two methods: an approximate analytical solution in the form of an asymptotic expansion and a numerical solution based on a spectral-finite difference scheme. The results reveal excellent agreement between the analytical and numerical solutions for small times and moderately large Reynolds numbers. Extensive results focussing on asymmetrical flows are presented for Reynolds numbers 500 and 1000 for various aspect ratios, inclinations, and slip lengths. Comparisons with the no-slip case are also made to elicit the effects of the Navier slip condition. The main findings include a reduction in drag as well as a suppression in vortex shedding.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2176-5
      Issue No: Vol. 229, No. 8 (2018)
       
  • On loading ceramic-like materials using split Hopkinson pressure bar
    • Authors: Y. G. Miao
      Pages: 3437 - 3452
      Abstract: In Hopkinson pressure bar experiments on ceramics, the stress inequilibrium and indentation of the specimen to bar ends are critical issues due to the brittle nature and high strength of ceramics. Theoretical analysis is employed to reconstruct the loading process for investigating the influence of the stress inequilibrium. The results indicate that it has little influence on the accuracy of stress–strain curves and accurate peak stress measurements during the dynamic test can be made. The optimized bilinear incident wave is formulated for achieving the stress equilibrium and constant strain rate loading on the specimen, and the experimental verification demonstrates the feasibility and merits of the bilinear wave in testing brittle materials. Numerical simulations are also performed to see the effect of bar indentation on stress–strain curves, and simulation results show strain concentration at both ends of the specimens resulting in premature failure. A specimen with a dogbone configuration is proposed which can greatly reduce the strain concentration and facilitate the accurate measurement of stress–strain for brittle materials.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2166-7
      Issue No: Vol. 229, No. 8 (2018)
       
  • Theoretical and experimental validation of nonlinear deflection and stress
           responses of an internally debonded layer structure using different
           higher-order theories
    • Authors: Chetan K. Hirwani; Subrata K. Panda; B. K. Patle
      Pages: 3453 - 3473
      Abstract: In this article, two types of higher-order kinematic theories are adopted to evaluate the nonlinear bending and the stress values of the internally damaged layered composite flat panel structure numerically including the thickness stretching effect. The structural distortion is modeled by Green–Lagrange strain kinematics including all of the nonlinear higher-order strain terms to maintain the required generality. Additionally, the internal debonding between the adjacent layers is introduced via two sub-laminate approaches by maintaining the intermittent link as a priori by the continuity condition. Subsequently, the static equilibrium equations of the debonded structure under the influence of uniform mechanical loading are obtained using a variational principle and solved iteratively in association with the isoparametric finite element steps. Further, the accuracy of the derived model is established by comparing the deflection and stress values with available published results including own experimental data (three-point bend test on artificially debonded layered composite). Finally, a suitable number of numerical examples is solved using the derived higher-order nonlinear models to reveal the operational strength and effect of the debonding (size, position, and location) on the nonlinear static deflection values of the debonded structure.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2173-8
      Issue No: Vol. 229, No. 8 (2018)
       
  • Cnoidal and gausson phenomena in nonlinear elastodynamics
    • Authors: Colin Rogers; Giuseppe Saccomandi; Luigi Vergori
      Pages: 3489 - 3500
      Abstract: A nonlinear elastodynamic system is investigated which is descriptive of transverse wave propagation in an isotropic, incompressible, hyperelastic material subject to body forces associated with a nonlinear substrate potential. Notably, by introducing an appropriate ansatz, both cnoidal and gausson-type exact solutions are isolated.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2187-2
      Issue No: Vol. 229, No. 8 (2018)
       
  • A new macro-mechanical approach for investigation of damage zone effects
           on mixed mode I/II fracture of orthotropic materials
    • Authors: Mahdi Fakoor; Maryam S. Shokrollahi
      Pages: 3537 - 3556
      Abstract: In this paper a new criterion for fracture investigation of orthotropic materials with cracks under mixed mode I/II loading is presented. In this fracture criterion, orthotropic material will be considered as a reinforced isotropic material. It is supposed that the crack will grow in the matrix of the orthotropic material. A new definition named here as “isotropic–orthotropic stress reduction factor” (IO-SRF) is utilized to consider the effects of the fracture process zone by a macro-mechanics approach. Also, the stress reduction factors will present a valuable relationship between the orthotropic and isotropic fracture toughness. Experimental and finite element methods will be introduced for computing the stress reduction factors. The SRFs are calculated for samples of glass–epoxy as an orthotropic material and samples of epoxy as a related isotropic one. Experimental tests under mixed mode I/II are performed on glass–epoxy composite samples to evaluate the validity of the presented mixed mode fracture criterion. The results of experimental tests on composite samples show a good agreement with the results of the presented criterion. Thus, the proposed criterion could be utilized as an efficient criterion for investigating the fracture of orthotropic materials under mixed mode I/II loading.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2132-4
      Issue No: Vol. 229, No. 8 (2018)
       
  • Correction to: Torsional wave and vibration subjected to constraint of
           surface elasticity
    • Authors: Zaixing Huang
      Pages: 3571 - 3571
      Abstract: The author regrets that the term in the integrand of the last row of Eq. (50) was omitted in the variational calculus of the paper cited above.
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2154-y
      Issue No: Vol. 229, No. 8 (2018)
       
  • Correction to: A promising approach for modeling biological fibers
    • Authors: Alan D. Freed; K. R. Rajagopal
      Pages: 3573 - 3573
      Abstract: The last sentence of [1] on page 1612, namely: “In fact no Helmholtz potential for an isotropic material can reduce this 1D equation of Fung.”
      PubDate: 2018-08-01
      DOI: 10.1007/s00707-018-2183-6
      Issue No: Vol. 229, No. 8 (2018)
       
  • Surface effects on an electrically permeable elliptical nano-hole or
           nano-crack in piezoelectric materials under anti-plane shear
    • Abstract: An electrically permeable elliptical nano-hole or nano-crack embedded in an infinite piezoelectric material with surface effect is investigated based on the Gurtin–Murdoch surface/interface model, which is subjected to far-field anti-plane mechanical and in-plane electrical loads. The electric field inside the elliptical nano-hole has been taken into consideration, and exact electroelastic fields near the elliptical nano-hole are obtained by using the technique of conformal mapping. The size-dependent stress and electric displacement intensity factors at the crack tip are derived exactly for both electrically permeable and impermeable boundary conditions when the elliptical nano-hole reduces to the nano-crack. Numerical examples are illustrated to show the surface effects on the stress and electric displacement intensity factors of electrically permeable and impermeable cracks, and on the stress and electric field concentrations around the electrically permeable and impermeable holes. The results indicate that the size dependence of an electrically permeable nano-hole or nano-crack is entirely different from that of the electrically impermeable case.
      PubDate: 2018-08-14
       
  • Modeling droplet deformation through converging–diverging
           microchannels at low Reynolds number
    • Authors: Erfan Kadivar
      Abstract: In this work, the deformation of a droplet flowing through planar diverging and converging channels connected by a narrow straight microchannel is studied numerically. The solution of the depth-averaged Brinkman equation is obtained numerically via a self-consistent integral equation using the boundary element method. The droplet experiences a converging/diverging radial flow field as it flows in/out of the straight channel. Therefore, droplet deformation strongly depends on channel diverging angle. Our numerical results indicate that the maximum deformation of the droplet depends on the droplet size and the modified capillary number, and the channel diverging angle can be scaled with power laws with exponents 3.00, 0.70, and 0.50, respectively.
      PubDate: 2018-08-11
      DOI: 10.1007/s00707-018-2225-0
       
  • Analysis of propagation characteristics of a shear wave in a frictionally
           bonded fibre-reinforced stratum
    • Authors: Amares Chattopadhyay; Akanksha Srivastava; Pulkit Kumar; Abhishek Kumar Singh
      Abstract: The present article aims to unravel the propagation characteristics of a shear wave in the context of reinforcement and frictional bonding in a composite structure. The geometrical configuration of the composite structure is comprised with a fibre-reinforced layer and an isotropic homogeneous semi-infinite medium which are frictionally bonded to each other. An analytical technique is employed to find the complex form of the frequency equation which is separated into real and imaginary parts representing the dispersion and damping relation, respectively. As a particular case of the problem, the deduced results are matched with the classical Love equation. The numerical simulation is performed to graphically portray the analytical findings and to trace out the effect of reinforcement by a comparative study which is a major highlight of the study. The significant influence of reinforcement, frictional bonding, and spectral decay parameter on the phase, group, and damped velocities are revealed. The outcome of the present study may be helpful to gain deeper insight into the propagation characteristics of a shear wave in a frictionally bonded composite structure which may provide useful information in engineering applications.
      PubDate: 2018-08-04
      DOI: 10.1007/s00707-018-2219-y
       
 
 
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