摘要
本文着重推导了二维变厚J积分的扩充表达式,并应用有限元素法进行了数值分析。同时采用修正条纹级数的光测方法对以上数值分析结果加以验证。
The formula of path-independent integral for two dimensional problems with variable thickness is deduced in this paper.The values of the integral are calculated with FEM and are coincident with the experimental results,which are obtained by using photomcasurcment method in which the stripe number is modified.
关键词
J积分
变厚度
光测法
有限元
二维
Path-independent integral
Variable thickness
Photomeasurement method
FEM
