弱界面复合材料的简化塑性模型

A SIMPLIFIED MODEL FOR PLASTICITY IN COMPOSITE MATERIALS WITH IMPERFECT INTERFACES

本文研究线弹簧型弱界面颗粒增强复合材料,在比例加载条件下的简化塑性模型。利用Mori-Tanaka模型,得到弱界面复合材料的割线弹塑性模量和有效应力,进而通过算例讨论了界面柔度对复合材料宏观应力应变曲线的影响。

A simplified model is proposed for plasticity in particle-reinforced composite materials with linear spring-type imperfect interfaces under proportional loading. The elasto-plastic secant moduli and effective stress of the composite materials are predicted by using Mori-Tanaka's model, and the influence of interfacial compliances on the stress-strain curve of composite materials is discussed.