在Eshelby等效夹杂方法和双夹杂模型等的基础上建立了细观力学模型,定量计算了短纤维增强金属基复合材料的微屈服行为.计算结果表明:在基体材料的微屈服行为符合Brown-Lukens线性规律的情况下,复合材料的σ-<ε~P>~(1/2)也近似符合Brown-Lukens规律.同时,计算了增强体短纤维的含量、形状、热残余应力和位错密度诸因素对复合材料微屈服规律的影响.
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