JournalTOCs

International Journal of Automotive Composites
Number of Followers: 5

Hybrid journal (It can contain Open Access articles)
ISSN (Print) 2051-8218 - ISSN (Online) 2051-8226
Published by Inderscience Publishers

[439 journals]

Ultimate in-plane strengths of two-dimensional tri-axial braided
composites: experiments and numerical simulations
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  Authors: Jian Wu, Yanjie Rui, Wei Ye, Huiming Ning, Ning Hu
  Pages: 87 - 95
  Abstract: The ultimate in-plane strengths of a carbon/glass fibre reinforced tri-axial braided composite are studied by experiments and numerical simulations. The ultimate tensile, compressible and shear strengths are tested. Employing Tsai-Wu failure criterion, a progressive failure analysis is performed in finite element analysis. Reasonable agreement between the experiments and numerical simulations indicates that present finite element model has a potential to predict the ultimate strengths of a two-dimensional tri-axial braided composite.
  Keywords: tri-axial braided composites; in-plane strengths; finite element analysis
  Citation: International Journal of Automotive Composites, Vol. 4, No. 2 (2019) pp. 87 - 95
  PubDate: 2019-09-13T23:20:50-05:00
  DOI: 10.1504/IJAUTOC.2019.102241
  Issue No: Vol. 4, No. 2 (2019)
Effect of surface treatments on damping behaviour of carbon fibre
reinforced brake friction material
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  Authors: Naresh Kumar Konada, Suman Koka Naga Sai
  Pages: 96 - 113
  Abstract: The damping behaviour of carbon fibre (CF) reinforced brake friction material depends mainly on the interfacial adhesion between fibre and matrix and ingredients selected for the friction material. The surface of CF is chemically inert in nature. Therefore, in this work CF surface is modified by different surface treatments to increase hydroxyl or carboxyl groups on its surface. An attempt is made to improve the bonding strength between CF and matrix by three treatment methods. CF surface is modified by surface oxidation, HNO<SUB align="right">3 and grafting multi walled carbon nano tubes functionalised (MWCNT-F) on CF surface. CF content after surface modification by three different treatments is varied in wt% (2%, 3%, 4% and 5%) and mixed with remaining ingredients. Friction composite sheets are fabricated by using hand layup method and characterised by SEM, TGA and FTIR analysis. MWCNTs-F on CF surface is observed. Sample specimens are cut from the friction composite sheets and damping behaviour of the specimens is evaluated by using Fast Fourier Transform analyser. The best combination of ingredients and surface treatment method is selected for the fabrication of friction material to reduce the squeal generation at the interface between brake disc and pad.
  Keywords: multi walled carbon nano tubes; carbon fibres; chemical grafting; damping; interfacial shear strength
  Citation: International Journal of Automotive Composites, Vol. 4, No. 2 (2019) pp. 96 - 113
  PubDate: 2019-09-13T23:20:50-05:00
  DOI: 10.1504/IJAUTOC.2019.102246
  Issue No: Vol. 4, No. 2 (2019)
Comparative analysis of scarf-type adhesively bonded and hand lay-up
repairs of impacted GFRP composites
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  Authors: Ermias G. Koricho, Anton Khomenko, Oleksii Karpenko, Mahmoodul Haq, Gary L. Cloud
  Pages: 114 - 136
  Abstract: In this paper two types of repair methods were considered: adhesively bonded and hand lay-up scarf-type patches. The performance of both repair techniques applied to impacted/damaged glass fibre reinforced plastic (GFRP) laminates was assessed under tensile and three-point bending tests. In the hand lay-up patches, two types of resins, namely unmodified and nano-modified resins were used to evaluate their effects on the flexural strength and failure modes of the repaired composite specimens. The damage was assessed using visual observation, active IR thermography, ultrasonic testing, and optical transmittance scanning techniques at different stages. Results indicate that, depending on the type of repair and nano-filler used, the flexural properties of the repaired composite specimen exhibited significant improvements. The choice of repair method would vary depending on the desired application along with accessibility to the damaged area. Overall, repair of composites allows considerable economic benefits over the replacement of an entire structural component.
  Keywords: repair; nanofillers; composite; non-destructive evaluation; adhesive
  Citation: International Journal of Automotive Composites, Vol. 4, No. 2 (2019) pp. 114 - 136
  PubDate: 2019-09-13T23:20:50-05:00
  DOI: 10.1504/IJAUTOC.2019.102251
  Issue No: Vol. 4, No. 2 (2019)
Feasibility of a concept out-of-autoclave carbon fibre reinforced polymer
part manufacturing process
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  Authors: Tom Taylor, Jun Yanagimoto
  Pages: 137 - 166
  Abstract: Feasibility of a concept out-of-autoclave carbon fibre reinforced (thermoset) polymer (CFRP) part manufacturing process, in which hot forming and curing of prepreg are integrated in one step, was demonstrated. Optimal forming-temperature, dwell-temperature and/or dwell-time with respect to formability, springback and mechanical properties of the formed part were determined for two representative laminate thicknesses of 0.3 and 0.5 mm by V-bend part forming followed by macroscopic observation, Scanning Electron Microscopy and flexural testing of formed parts. Benchmarking against parts manufactured by the traditional autoclave-process demonstrated feasibility of the concept process for manufacturing high-quality parts, principally for lightweight structural automotive engineering applications. Compared to Resin Transfer Moulding, considered the industry benchmark Out-of-Autoclave process, opportunity for reduced manufacturing time to within 300 s per part and through a much more simple process for reduced lead-time, reduced financial cost and greater environmental sustainability, was highlighted.
  Keywords: carbon fibre reinforced polymer; thermoset; composite; part manufacturing; formability; springback; flexural properties; prepreg; automotive lightweighting
  Citation: International Journal of Automotive Composites, Vol. 4, No. 2 (2019) pp. 137 - 166
  PubDate: 2019-09-13T23:20:50-05:00
  DOI: 10.1504/IJAUTOC.2019.102263
  Issue No: Vol. 4, No. 2 (2019)