第ゼロ節点法による異種接合材の応力拡大係数解析

概要

論文の詳細を見る
The finite element method (FEM) is useful for stress analysis and is used widely in general. However, it is still not necessarily easy to obtain the highly accurate values, of the stress intensity factors by FEM. Recently, a method for calculating the highly accurate values of the stress intensity factors hag been proposed by H. Nisitani, based on the usefulness of the stress values at a crack tip calculated by FEM. This method is called the crack tip stress method. The usefulness of this method has already been confirmed by the body force method in the cases of the homogeneous material. In this study, an extension of the crack tip stress method to the interface crack problems was made. Then the accuracy of the present analysis is discussed through the stress intensity factors obtained by the body force method. As the results, it was confirmed that the present analysis has the sufficient accuracy in the interface crack problems.
社団法人日本機械学会の論文
2003-08-25