Stress Analysis of Shear/Compression Test
Stress analysis has been made on the glass fiber reinforced plastics(GFRP) subjected to the combined shear and compression stresses by means of finite element method. The two types of experimental set up were analyzed, that is parallel and series method where the specimen were compressed by tilted jigs which enable to apply the combined stresses, to the specimen. Modified Tsai-Hill criterion was employed to judge the failure under the combined stresses that is the shear strength under the compressive stress. The different failure envelopes were obtained between the two set ups. In the parallel system the shear strength once increased with compressive stress then decreased. On the contrary in the series system the shear strength decreased monotonicly with compressive stress. The difference is caused by the different stress distribution due to the different constraint conditions. The basic parameters which control the failure under the combined stresses will be discussed.
KeywordsShear Strength Compressive Stress Reaction Force Constraint Condition Series Method
Unable to display preview. Download preview PDF.
- 1.N. J. Simon, R. P. Reed and R. P. Walsh, “Compression and Shear Tests on a Vacuum-Impregnated Composites at Cryogenic Temperatures”, Adv. Cryog. Eng. 38: 363(1992).Google Scholar
- 2.T. Okada and S. Nishijima, “Investigation of Interlaminar Shear Behavior of Organic Composites at Low Temperatures, Adv. Cryog. Eng. 36: 811 (1990)Google Scholar
- 3.N. J. Simon, E. S. Drexler and R. P. Reed, “ Shear/Compressive Tests for ITER Cryog. Eng. 40: 977(1994)Google Scholar
- 4.S. S. Wang and E. S. M. Chim, “Degradation of Fiber-Reinforced Composite Temperatures, Part 11 — Multiaxial Fatigue”, Adv. Cryog. Eng. 28: 977 (1994)Google Scholar