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On the relation between static-strength and fatigue-life distributions of composite materials

被引：0
|
作者：
Cheng, Ho-Chih [1 ]
Wu, Wen-Fang [1 ]
机构：
[1] Department of Mechanical Engineering, National Taiwan University, Taipei 106, Taiwan
来源：
Journal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao | 2002年 / 23卷 / 03期
关键词：
Computer simulation - Fatigue of materials - Laminated composites - Strength of materials - Weibull distribution;
D O I：
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中图分类号：
学科分类号：
摘要：
In order to verify the Strength Life Equal Rank Assumption (SLERA), a batch of specimens made of [0/45/90/-45]2S graphite/epoxy composite laminates has been tested. The relation between the fatigue life distribution and the static strength distribution of these tested specimens is investigated in the present study. It is found that SLERA is valid and a simple S-N relationship exists for the tested fatigue specimens. Based on SLERA and the S-N relationship, combined with the static strength distribution of the material known in advance, formulas are derived and proposed for the prediction of the fatigue life distribution. Experimental data as well as simulation data confirm that the proposed formulas can be used to predict the fatigue life distribution of the composite materials very well.
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页码：203 / 211
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