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断裂力学的复变量无网格方法 被引量:5

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摘要 在移动最小二乘法的基础上,讨论了复变量移动最小二乘法.复变量移动最小二乘法的优点是不形成病态方程组、精度高,所形成的无网格方法计算量小.利用裂纹尖端解析解将复变量移动最小二乘法的基函数进行扩展,推导了相应的逼近函数;从最小势能原理出发提出了断裂力学的复变量无网格方法,推导了相应的复变量无网格方法的求解方程.与传统的无网格方法相比,断裂力学的复变量无网格方法具有计算量小、精度高的优点.最后给出了数值算例.
出处 《中国科学(G辑)》 CSCD 2005年第5期548-560,共13页
基金 上海市重点学科建设项目资助(批准号:Y0103)
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