ON J-INTEGRALS IN THE PLANE FRACTURE OF COMPOSITE MATERIALS

Applied Mathematics and Mechanics (English Edition) ›› 1992, Vol. 13 ›› Issue (3): 281-287.

ON J-INTEGRALS IN THE PLANE FRACTURE OF COMPOSITE MATERIALS

杨维阳, 张少琴, 贾元铎

Taiyuan Heavy Machinery Institute, Taiyuan

收稿日期:1991-02-11 出版日期:1992-03-18 发布日期:1992-03-18
通讯作者: Tang Ren-ji

ON J-INTEGRALS IN THE PLANE FRACTURE OF COMPOSITE MATERIALS

Yang Wei-yang, Zhang Shao-qin, Jia Yuan-duo

Taiyuan Heavy Machinery Institute, Taiyuan

Received:1991-02-11 Online:1992-03-18 Published:1992-03-18

摘要/Abstract

摘要： By using a complex function method in this paper, the complex form of J-integral of mixed mode crack tip for unidirectional plate of linear-elastic orthotropic composites is obtained first by substituting crack tip stresses and displacements into general formula of J-integral. And then, the path-independence of this J-integral is proved. Finally, the computing formula of this J-integral is derived. As special examples, the complex forms, path-independence and computing formulae of J-integrals of mode Ⅰ and mode Ⅱ crack tips for unidirectional plate of linear-elastic orthotropic composites are given.

关键词: J-integral, crack tip, composite material, complex function method.

Abstract: By using a complex function method in this paper, the complex form of J-integral of mixed mode crack tip for unidirectional plate of linear-elastic orthotropic composites is obtained first by substituting crack tip stresses and displacements into general formula of J-integral. And then, the path-independence of this J-integral is proved. Finally, the computing formula of this J-integral is derived. As special examples, the complex forms, path-independence and computing formulae of J-integrals of mode Ⅰ and mode Ⅱ crack tips for unidirectional plate of linear-elastic orthotropic composites are given.

Key words: J-integral, crack tip, composite material, complex function method.

杨维阳;张少琴;贾元铎. ON J-INTEGRALS IN THE PLANE FRACTURE OF COMPOSITE MATERIALS[J]. Applied Mathematics and Mechanics (English Edition), 1992, 13(3): 281-287.

Yang Wei-yang;Zhang Shao-qin;Jia Yuan-duo. ON J-INTEGRALS IN THE PLANE FRACTURE OF COMPOSITE MATERIALS[J]. Applied Mathematics and Mechanics (English Edition), 1992, 13(3): 281-287.

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ON J-INTEGRALS IN THE PLANE FRACTURE OF COMPOSITE MATERIALS

ON J-INTEGRALS IN THE PLANE FRACTURE OF COMPOSITE MATERIALS

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