CONSIDERATION IN APPLICATION OF AUTOMOTIVE PLASTIC COMPOSITES

Plastic composites are drawing attention as automotive lightweight materials for the future. The characteristics of composites depend on combinations of matrixes, i.e., thermosetting or thermoplastic materials, and various kinds of reinforcing materials. Composites of thermosetting plastics and fibrous materials generally have great tensile and flexure strength as well as rigidity because of the long fibres, but care must be taken over the orientation of fibrous materials, uneveness of strength, and impact strength, and attention paid to wall thickness, holes, ribs, and round corners. It is also necessary to further improve their paintability and storage stability before molding. If the matrix is a thermoplastic (injection molded), its reinforcing materials have shorter fibres, which is some advantage against orientations. However, weld lines will have less strength due to orientation. Composites consist of thermoplastic materials and granular or powder reinforcing materials have less directional characteristic than fibrous materials, and offer good surface appearance, impact strength and warping resistance, but can hardly be expected to have an improved flexure modulus, though these properties vary with the kind of matrix. An increased flexure modulus decreases impact strength, and tends to make fractures sharp. Therefore, it is necessary to properly combine filler characteristics with base polymer modification, and to make suitable material design for parts. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/6664983
• Corporate Authors:

  Society of Automotive Engineers of Japan

  10-2 Goban-cho, Chiyoda-ku
  Tokyo,   Japan 
• Authors:
  • Goto, F
  • Ikeda, T
• Publication Date: 1982-7

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 63-71
• Serial:
  • JSAE Review
  • Issue Number: 8
  • Publisher: Society of Automotive Engineers of Japan
  • ISSN: 0389-4304
  • Serial URL: http://www.sciencedirect.com/science/journal/03894304

Subject/Index Terms

• TRT Terms: Automobiles; Bumpers; Carbon; Composite materials; Design; Fibers; Flexural strength; Material reinforcement; Modulus of elasticity; Motor vehicle bodies; Plastics; Reinforcing materials; Shock resistance; Silicon; Steel; Tensile strength; Thermoplastic materials; Vehicle components
• Uncontrolled Terms: Impact strength
• Old TRIS Terms: Automobile bodies
• ITRD Terms: 1356: Body (car); 1352: Bumper; 1243: Car; 7158: Carbon; 9005: Composite; 9011: Design (overall design); 4557: Fibre; 7454: Plastic material; 3471: Reinforcement (in mater); 7148: Silicon; 4542: Steel
• Subject Areas: Design; Geotechnology; Highways; Materials; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00368718
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Report/Paper Numbers: HS-036 254
• Files: ITRD, TRIS
• Created Date: Jan 31 1983 12:00AM