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工程力学  2014 

基于细观损伤力学的耐火材料单轴压缩非线性力学行为研究

, PP. 199-202

Keywords: 细观损伤力学,损伤机理,损伤函数,广义自洽模型,镁碳质耐火材料

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Abstract:

在单轴压缩实验的基础上,分析材料细观损伤机理,结合广义自洽模型,通过构建基质相弹性模量关于外载荷的损伤函数来表征细观损伤演化过程,建立材料受载状态下的微损伤模型,实现材料非线性力学行为的定量描述。以镁碳质耐火材料为例,对材料在受压载荷下的损伤演化过程进行了模拟,结果表明,运用此方法对耐火材料的受压损伤过程进行表征,其结果与材料试验结果可以较好地吻合。

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