Strain-life fatigue predictions for sintered steels with nonzero mean stress

被引:0
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作者
Ernani S. Palma
Paulo C. Greco
机构
[1] Catholic University of Minas Gerais - PUC.Minas,Department of Mechanical Engineering
关键词
cyclic loads; fatigue; fatigue life prediction; sintered materials; strain life;
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学科分类号
摘要
Several approximate models have been utilized for fatigue life prediction. Some of these models are available for mean stress (or strain) correction on fatigue life, when nonzero mean stress (or strain) is applied. In this paper, the most commonly used empirical strain-life models for fatigue life predictions, for materials subjected to variable amplitude loads, are described. Experimental results of fatigue tests, where the specimens of sintered steels were subjected to partial random loads, are presented and compared with those results obtained theoretically by the models. The utilization of the various models and their influence on results are discussed.
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页码:683 / 687
页数:4
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