OS1422 一様温度変化を受ける接合有限板の界面き裂の応力拡大係数(OS14-5 接合材料,はりの弾性数理解析,OS-14 弾性数理解析の発展と新展開2)

概要

論文の詳細を見る
This paper deals with the analysis of the thermal stress intensity factor for interfacial crack in dissimilar materials subjected to uniform change of temperature by using the finite element method. In the present method, the stress values at the crack tip calculated by FEM are used under the same mesh pattern and the stress intensity factors are evaluated from the ratio of stress values at the crack-tip-node between a given and a reference problems. This method is based on the fact that the singular stress field near the interface crack tip is controlled by the stress values at the crack tip calculated by FEM. As the reference problems, a single interface crack in an infinite bi-material plate subjected to tension and shear is selected in this study. The accuracy of the present analysis is verified by the comparing the present results with the results obtained by difference mesh sizes and other researches. The calculation shows that the present method has the sufficient accuracy in the interface crack problems under thermal stress.
一般社団法人日本機械学会の論文
2011-07-16