| 含缺口构件高周疲劳寿命的损伤力学封闭解法 |
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| 引用本文： | 黄克智,赵军,张行.含缺口构件高周疲劳寿命的损伤力学封闭解法[J].力学学报,1993,25(4):452-459. |
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| 作者姓名： | 黄克智 赵军 张行 |
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| 作者单位： | 清华大学工程力学系,100084 |
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| 摘 要： | 本文根据损伤力学建立含缺口板守恒积分、应力与应变集中系数公式以及疲劳裂纹形成寿命的封闭解法。对铝合金含缺口板寿命预估结果与实验结果基本一致。本方法节省机时并可代替大量实验,具有一定的工程实用性。
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| 关 键 词： | 裂纹 损伤力学 疲劳寿命 封闭解 |
A CLOSED FORM SOLUTION ABOUT HIGH CYCLE FATIGUE CRACK INITIATION LIVES OF NOTCHED PLATES BY METHODOLOGY OF DAMAGE MECHANICS |
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| Hwang Keh-chih.A CLOSED FORM SOLUTION ABOUT HIGH CYCLE FATIGUE CRACK INITIATION LIVES OF NOTCHED PLATES BY METHODOLOGY OF DAMAGE MECHANICS[J].chinese journal of theoretical and applied mechanics,1993,25(4):452-459. |
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| Authors: | Hwang Keh-chih |
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| Abstract: | According to methodology of damage mechanics, the conservative integral, stress and strain concentration factors and closed form solution of fatigue crack initiation lives of notched plates are established. For aluminum alloy, the agreement between the results of theoretical predictions and those by experiments is satisfactorily good. This method is very time-saving and a lot of experimental work can be substituted.So this method is in engineering practice. |
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| Keywords: | Crack initiation lives Damage mechanics Conservative integral Small scale damage Generalized Neuber's formula Closed form solution |
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