| 矩形截面梁的疲劳裂纹形成寿命预估 |
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| 引用本文： | 谭文锋,张文志. 矩形截面梁的疲劳裂纹形成寿命预估[J]. 燕山大学学报, 2007, 31(1): 13-15 |
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| 作者姓名： | 谭文锋 张文志 |
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| 作者单位： | 1. 燕山大学,建筑工程与力学学院,河北,秦皇岛,066004
2. 燕山大学,机械工程学院,河北,秦皇岛,066004 |
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| 摘 要： | 用损伤力学推导了大范围损伤下的预估往复弯曲梁疲劳裂纹形成寿命的封闭解答,给出了确定损伤演化方程中材料常数的方法,说明了预估矩形截面梁疲劳裂纹形成寿命的方法.
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| 关 键 词： | 大范围损伤 矩形截面梁 寿命预估 |
| 文章编号： | 1007-791X(2007)01-0013-03 |
| 修稿时间： | 2006-09-27 |
Prediction of crack initiation life of rectangular cross-section beam |
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| TAN Wen-feng,ZHANG Wen-zhi. Prediction of crack initiation life of rectangular cross-section beam[J]. Journal of Yanshan University, 2007, 31(1): 13-15 |
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| Authors: | TAN Wen-feng ZHANG Wen-zhi |
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| Abstract: | By using of the theory of damage mechanics, closed-form solution about predicting crack initiation life of a beam subjected to reverse bending which leads to large range damage is derived. The method of determining material constants in damage evolution equation is given. The approach to predicting crack initiation life of rectangular cross-section beam is discussed. |
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| Keywords: | large range damage rectangular cross-section beam prediction of life |
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