| THE FULLY PLASTIC J-INTEGRAL OF CORNER CRACKS AT A HOLE IN A PLATE |
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| 引用本文： | Gao Qing Huang Zhengzhong (Institute of Applied Mechanics,Southwest Jiaotong University,Chengdu 610031,China). THE FULLY PLASTIC J-INTEGRAL OF CORNER CRACKS AT A HOLE IN A PLATE[J]. Acta Mechanica Solida Sinica, 1997, 10(2): 131-137. DOI: 10.1007/BF02207740 |
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| 作者姓名： | Gao Qing Huang Zhengzhong (Institute of Applied Mechanics Southwest Jiaotong University Chengdu 610031 China) |
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| 作者单位： | Institute of Applied Mechanics，Southwest Jiaotong University，Chengdu 610031，China |
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| 基金项目： | The project is supported by Provincial Natural Science Foundation of Sichuan. |
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| 摘 要： | The line-spring model of surface cracks is applied to the fully plastic analysis of cornercracks at a hole in a plate.The generalized fully plastic constitutive relations and the fully plastic J-in-tegral,as well as its coefficients in polynomial expressions are given.The model obtained is incorpo-rated into a finite element program.The corner cracks at a hole in a plate subjected pure tensions arecalculated by the present model.The fully plastic J-integral is then estimated.The results obtainedshow that the line-spring model is effective for the analysis of corner cracks.The influence of thecrack depth and the hardening exponent on the fully plastic J-integral is also discussed.
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| 收稿时间： | 1996-11-11 |
THE FULLY PLASTIC J-INTEGRAL OF CORNER CRACKS AT A HOLE IN A PLATE |
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| Gao Qing Huang Zhengzhong. THE FULLY PLASTIC J-INTEGRAL OF CORNER CRACKS AT A HOLE IN A PLATE[J]. Acta Mechanica Solida Sinica, 1997, 10(2): 131-137. DOI: 10.1007/BF02207740 |
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| Authors: | Gao Qing Huang Zhengzhong |
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| Affiliation: | (1) Institute of Applied Mechanics, Southwest Jiaotong University, 610031 Chengdu, China |
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| Abstract: | The line-spring model of surface cracks is applied to the fully plastic analysis of corner cracks at a hole in a plate.The generalized fully plastic constitutive relations and the fully plastic J-in- tegral,as well as its coefficients in polynomial expressions are given.The model obtained is incorpo- rated into a finite element program.The corner cracks at a hole in a plate subjected pure tensions are calculated by the present model.The fully plastic J-integral is then estimated.The results obtained show that the line-spring model is effective for the analysis of corner cracks.The influence of the crack depth and the hardening exponent on the fully plastic J-integral is also discussed. |
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| Keywords: | corner crack line-spring model fully plastic J-integral |
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