摘要
为了计算构件裂纹断裂参量应力强度因子,利用有限元方法对矩形板中心裂纹断裂参量应力强度因子的计算进行了研究。在建立有限元模型时对于裂纹尖端的单元,采用节点—单元的方式生成二次奇异单元。同时对矩形板中心裂纹的应力强度因子的计算公式进行了修正,得到了简便的公式。为计算类似的裂纹断裂参量提供了参考和借鉴。
In order to calculate of the stress intensity factors fracture parameters, stress intensity factors in the center-cracked rectangular panel were studied by FEA method. When FEA model was formed, the quadratic singular elements of the tip of the crack were formed by node to element. The calculation expression of the center-cracked rectangular panel was revised. A simple expression was gained. It provides reference for similar fracture parameters calculation.
出处
《解放军理工大学学报（自然科学版）》
EI
2006年第3期271-274,共4页
Journal of PLA University of Science and Technology(Natural Science Edition)
关键词
应力强度因子
矩形板
有限元
裂纹
stress intensity factors
rectangular panel
finfite element
fracture
