Effect of cyclic plastic strain and flow stress on low cycle fatigue life of 316L(N) stainless steel

被引：13
|
作者：
Xu, Jinquan [1 ,2 ]
Huo, Mingchen [2 ]
Xia, Ri [2 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Navel Architecture Ocean & Civil Engn, Shanghai 200240, Peoples R China
来源：
MECHANICS OF MATERIALS | 2017年 / 114卷
关键词：
Low cycle fatigue; Hysteresis loop; Cyclic plastic strain; Flow stress; Fatigue life; DEFORMATION-BEHAVIOR; CRACK INITIATION; DAMAGE MECHANICS; MODEL; PREDICTION; ALLOYS; ENERGY;
D O I：
10.1016/j.mechmat.2017.07.014
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Hysteresis loop can lead to cyclic plastic deformation. Both cyclic style and amplitude of cyclic plastic strain in a saturated cycle are very different from that of applied strain. Cyclic plastic strain and its corresponding stress (flow stress) are strongly dependent on hysteresis loop. Considering that fatigue damage accumulation is mainly induced by cyclic plastic deformation, a damage model for low cycle fatigue has been proposed based on flow stress. The whole epsilon - N curve, not only the linear part, but also the curve part, can be well described by this model. Examinations with experimental results of 316L(N) stainless steel show that it can also be used to the case even the epsilon - N curve is not smooth. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：134 / 141
页数：8
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