Studying Tensile Strength of Discontinuous Fibber Composites with Statistic Method

摘要

Comparing with continuous fiber composites, discontinuous fiber composites (DCFC) have more productions and applications. But the study on the properties of DCFC is very little. So far, in the literatures on composite materials, the equations on strength of DCFC are too simple or too complex to be properly applied to engineering project or include some indefinite parameters not suitable to be used in practice. In this paper, by directly analyzing the stress and strain of DCFC and studying the effect of length, direction and position of fibers with statistic method, a group of useful equations has bee gotten, which are suitable to calculate or estimate the tensile strength of DCFC.