论文期刊

Numerical analysis of the transverse strengthening behavior of fiber-reinforced




作者: W.X. Zhanga T.J. Wang
发表/完成日期: 2007-05-03
期刊名称: Computational Materials Science
期卷: Volume 39, Issue 3
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论文简介
The transverse strengthening behavior of fiber-reinforced metal matrix composites is

numerically investigated on the basis of micromechanics analysis. Periodic boundary

condition is developed and employed in calculations for considering arbitrary

loading directions without changing the configuration of the unit cell. The

symmetric boundary condition will be naturally attained if the loading is along the

symmetric directions of the unit cell if any. Effects of the volume fraction and

several more general fiber arrangements on the transverse strengthening of

composites are discussed in detail, including single and/or multi-fibers

simulations, from which the maps of the strengthening responses in various

directions of the composites are obtained. It is concluded that the effect of fiber

volume fraction is significantly different in various directions, the maximum

strengthening of composites does not always occur in 0° and/or 90° directions

whereas the minimum strengthening is always in 45° direction, and the strengthening

of composites has a period of 90° which are independent of fiber arrangements.