摘要
为了较好地模拟非均质材料的细观损伤行为,利用含夹杂与裂尖的解析胞元法建立考虑温度效应的复合材料内部裂尖邻域的细观力学模型,利用该模型分析非均质材料中初始缺陷对材料力学性能的影响。研究结果表明,建立的解析胞元法不仅能够比较精确地模拟非均匀材料细观几何结构特征对宏观性能的影响,还能够预测温度场变化引起的裂纹扩展。
In order to simulate micromechanical damage behavior of heterogeneous materials, the micromechanics model with the consideration of temperature effect near a crack-tip in a composite has been presented by using the method of analytical cells, and the influences of initial defect on mechanical properties of heterogeneous materials were analyzed. The results indicated that the method can not only simulate the effects of micro-structural geometry on macro-properties but also forecast micro-crack propagation with temperature changing.
出处
《兵器材料科学与工程》
CAS
CSCD
2009年第6期45-50,共6页
Ordnance Material Science and Engineering
基金
中国工程物理研究院重大基金资助项目(2005Z0302)
关键词
非均质材料
解析胞元
细观力学
heterogeneous materials
analytical cell
micromechanics
