A statistical constitutive model, which takes into account the effect of strain rate, was presented to describe the stress— strain relationship of unidirectional fiber-reinforced composites (UFRC). To verify its reliability, tensile tests on two kinds of UFRC: a glass fiber-reinforced polyster and a unidirectional SiC/Al composite wire, were carried out at different strain rates, and the stress—strain curves were obtained. The testing results show that the strength and ductility of the two composites all increase with increasing strain rate. Simulated stress—strain curves, derived from the constitutive model, fit the tested results well, which indicates that the model is valid and reliable.
Ronald FGA review of recent research on mechanics of multifunctional composite materials and structures. Compos Struct2010; 92: 2793-2810.
2.
Mohamad SQ, Rani WS and Wenchao W.Recent research advances on the dynamic analysis of composite shells: 2000-2009 . Compos Struct2010; 93: 14-31.
3.
Chi Z., Chou T-W. and Shen G.Determination of single fiber strength distribution from fiber bundle testing . J Mater Sci1984; 19: 3319-3324.
4.
Zhen W. and Yuanming X.Experimental evaluation of the strength distribution of fibers under high strain rates by bimodal Weibull distribution. Compos Sci Technol1997; 57: 1599-1607.
5.
Huang W., Yuanxin Z., Gang M. and Yuanming X.An experimental study on strain rate-dependent tensile properties of aluminum L2. Mater Sci Technol2002; 10(3): 263-267.
6.
Yang W., Yuanming X. and Yuxi J.Tensile behavior and strength distribution of polyvinyl-alcohol fibre at high strain rates. Appl Compos Mater2001; 8: 297-306.
7.
Tadashi M., Kenji O., Tomei H., Kenji S. and Makoto Y.Effect of acoustic cavitation on ease of infiltration of molten aluminum alloys into carbon fiber bundles using ultrasonic infiltration method. Composites Part A2007; 38(3): 771-778.
8.
Yuanming X. and Yang W.Dynamic testing of materials with the rotating disk indirect bar-bar tensile impact apparatus. J Test Eval2007; 35: 31-35.
