关于复合材料弹塑性的一个理论描述
ON A THEORY FOR ELASTOPLASTICITY OF COMPOSITES
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摘要: 根据格林函数理论和微扰方法，提出了描述复合材料弹塑性（非线性应力－应变关系）行为的简单理论．对陶瓷颗粒增强金属基复合材料，给出了两个不同的解。ＳｉＣ／Ａｌ复合材料的计算实例表明，理论结果与实验结果是相符合的．Abstract: A simple theory for describing elastoplastic behavior(nonlinear stress-strainrelations) of composites has been developed in terms of Green’s function theory and per-turbation method. For the metal-matrix composites reinforced with ceramic particles, twodifferent solutions,namely average t- matrix approximation(ATA) and coherent-potential ap-proximation(CPA), have been given. A calculation exainple of SiCp /Al composites indicatesthat the theoretical predictions are consistent with experimental results。
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Keywords:
- composite /
- elastoplasticity /
- micromechanics
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