On Flexural and Tensile Strength for Composites Manufactured by RTM
| Autor: | J. Anders Holmberg |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Materials science
Polymers and Plastics Tension (physics) Mechanical Engineering Glass fiber Composite number 02 engineering and technology Bending 021001 nanoscience & nanotechnology Stress (mechanics) 020303 mechanical engineering & transports 0203 mechanical engineering Flexural strength Mechanics of Materials Ultimate tensile strength Materials Chemistry Ceramics and Composites Composite material 0210 nano-technology Tensile testing |
| Zdroj: | Journal of Reinforced Plastics and Composites. 11:1302-1320 |
| ISSN: | 1530-7964 0731-6844 |
| DOI: | 10.1177/073168449201101106 |
| Popis: | The difference between tensile and flexural strength for a composite con sisting of vinylester reinforced with continuous E-glass fibres arranged in a random pat tern has been investigated. Both tensile tests and three- and four-point bending tests have been performed. It was found that the Weibull theory can be applied to explain the difference between ultimate strength in tension and bending provided that the theory is applied on fibre stress and not on some average composite stress. In addition it was found that influences of friction at the supports and large deflections has to be taken into account as well as nonlinear elastic material behaviour when glass fibre reinforced plastics are tested in bending. Simple closed form expressions which take these effects into account have been derived. A suggestion for proper evaluation of bending tests is presented in sum marized form in Appendix A. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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