A STUDY OF J-INTEGRAL OF THE ORTHOTROPIC COMPOSITE MATERIAL

Applied Mathematics and Mechanics (English Edition) ›› 1994, Vol. 15 ›› Issue (1): 61-69.

A STUDY OF J-INTEGRAL OF THE ORTHOTROPIC COMPOSITE MATERIAL

王蔼勤, 冯宝莲, 杨维阳

Taiyuan Heavy Machinery Institute, Taiyuan

收稿日期:1992-11-26 出版日期:1994-01-18 发布日期:1994-01-18

A STUDY OF J-INTEGRAL OF THE ORTHOTROPIC COMPOSITE MATERIAL

Wang Ai-qin, Feng Bao-lian, Yang Wei-yang

Taiyuan Heavy Machinery Institute, Taiyuan

Received:1992-11-26 Online:1994-01-18 Published:1994-01-18

摘要/Abstract

摘要： The relation between J-integral near model I crack tip in the orthotropic plateand displacement derivative is derived in this paper. Meanwhile,Ihe relation betweenstress intensity factor K₁ and displacement is also given in this paper.With stickingfilm moire interferometry method, the three-point bending beam is tested,thus thevalues of J-integral and K₁ can be obtained.from the displacement field,and then thetruth of relation formula between J-integral and K₁ in the orthotrtopic compositematerials is experimentally verified.

关键词: orthotropic composite material, J-integral, sticking film moireinterferometry

Abstract: The relation between J-integral near model I crack tip in the orthotropic plateand displacement derivative is derived in this paper. Meanwhile,Ihe relation betweenstress intensity factor K₁ and displacement is also given in this paper.With stickingfilm moire interferometry method, the three-point bending beam is tested,thus thevalues of J-integral and K₁ can be obtained.from the displacement field,and then thetruth of relation formula between J-integral and K₁ in the orthotrtopic compositematerials is experimentally verified.

Key words: orthotropic composite material, J-integral, sticking film moireinterferometry

王蔼勤;冯宝莲;杨维阳. A STUDY OF J-INTEGRAL OF THE ORTHOTROPIC COMPOSITE MATERIAL[J]. Applied Mathematics and Mechanics (English Edition), 1994, 15(1): 61-69.

Wang Ai-qin;Feng Bao-lian;Yang Wei-yang . A STUDY OF J-INTEGRAL OF THE ORTHOTROPIC COMPOSITE MATERIAL[J]. Applied Mathematics and Mechanics (English Edition), 1994, 15(1): 61-69.

[1]	王利民;陈浩然;徐世烺. CONSERVATION LAW AND APPLICATION OF J-INTEGRAL IN MULTI-MATERIALS[J]. Applied Mathematics and Mechanics (English Edition), 2001, 22(10): 1216-1224.
[2]	吴祥法;范天佑;刘长河. PATH-INDEPENDENT J-INTEGRAL AND ITS DUAL FORM IN ELASTIC-PLASTIC SOLIDS WITH FINITE DISPLACEMENTS[J]. Applied Mathematics and Mechanics (English Edition), 1999, 20(3): 315-318.
[3]	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.
[4]	王燕群;张敬宇. A PRECISE SINGULAR FINITE ELEMENT FOR CRACK ANALYSIS[J]. Applied Mathematics and Mechanics (English Edition), 1990, 11(10): 995-1000.

A STUDY OF J-INTEGRAL OF THE ORTHOTROPIC COMPOSITE MATERIAL

A STUDY OF J-INTEGRAL OF THE ORTHOTROPIC COMPOSITE MATERIAL

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