| WEIGHT FUNCTION FOR STRESS INTENSITY FACTORS IN ROTATING THICK-WALLED CYLINDER |
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| 作者姓名： | 陈爱军 曾文骥 |
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| 作者单位： | School of Science，School of Science Nanjing University of Science and Technology，Nanjing 210094，P.R.China，Nanjing University of Science and Technology，Nanjing 210094，P.R.China |
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| 摘 要： | The equation of stress intensity factors(SIF) of internally pressurized thick- walled cylinder was used as the reference case.SIF equation of rotating thick-walled cylinder containing a radial crack along the internal bore was presented in weight function method.The weight fumction formulas were worked out and can be used for all kinds of depth of cracks,rotating speed,material,size of thick-walled cylinder to calculate the stress intensity factors.The results indicated the validity and effectiveness of these formulas.Meanwhile,the rules of the stress intensity factors in rotating thick-walled cylinder with the change of crack depths and the ratio of outer radius to inner radius were studied.The studies are valuable to engineering application.
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| 关 键 词： | 重力函数 应力强度 断裂机械学 旋转柱体 边缘断裂 |
| 收稿时间： | 2004-06-09 |
| 修稿时间： | 2005-09-06 |
Weight function for stress intensity factors in rotating thick-walled cylinder |
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| Ai-jun Chen,Wen-ji Zeng.WEIGHT FUNCTION FOR STRESS INTENSITY FACTORS IN ROTATING THICK-WALLED CYLINDER[J].Applied Mathematics and Mechanics(English Edition),2006,27(1):29-35. |
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| Authors: | Ai-jun Chen Wen-ji Zeng |
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| Institution: | School of Science, Nanjing University of Science and Technology, Nanjing 210094, P.R.China |
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| Abstract: | The equation of stress intensity factors(SIF) of internally pressurized thick- walled cylinder was used as the reference case.SIF equation of rotating thick-walled cylinder containing a radial crack along the internal bore was presented in weight function method.The weight fumction formulas were worked out and can be used for all kinds of depth of cracks,rotating speed,material,size of thick-walled cylinder to calculate the stress intensity factors.The results indicated the validity and effectiveness of these formulas.Meanwhile,the rules of the stress intensity factors in rotating thick-walled cylinder with the change of crack depths and the ratio of outer radius to inner radius were studied.The studies are valuable to engineering application. |
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| Keywords: | fracture mechanics weight function method rotating cylinder edge crack |
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