A study on stress intensity factors and singular stress fields of three-dimensional interface crack

作者：Chen, MC; Gao, C; Tang, RJ

来源：Acta Mechanica Solida Sinica, 1999, 12(1): 43-50.

• three-dimensional
• planar interface crack
• hypersingular integrodifferential equation
• numerical method
• singular stress field
• stress intensity factor

By using the finite-part integral concepts and limit technique, the hypersingular integrodifferential equations of three-dimensional (3D) planar interface crack were obtained; then the dominant-part analysis of 2D hypersingular integral was further used to investigate the stress fields near the crack front theoretically, and the accurate formulae were obtained for the singular stress fields and the complex stress intensity factors. After that, a numerical method is proposed to solve the hypersingular integrodifferential equations of 3D planar interface crack, and the problem of elliptical planar crack is then considered to show the application of the method. The numerical results obtained are satisfactory.

• 出版日期1999-3
• 单位上海交通大学