A thermodynamic model for material fatigue under cyclic loading

被引：12
|
作者：
Eleuteri, Michela [2 ]
Kopfova, Jana [1 ]
Krejci, Pavel [3 ]
机构：
[1] Silesian Univ, Math Inst, Opava, Czech Republic
[2] Dipartimento Matemat, Povo, Trento, Italy
[3] Acad Sci Czech Republic, Math Inst, Prague 1, Czech Republic
来源：
PHYSICA B-CONDENSED MATTER | 2012年 / 407卷 / 09期
关键词：
Hysteresis; Prandtl-Ishlinskii operator; Plasticity; Fatigue;
D O I：
10.1016/j.physb.2011.10.017
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We propose a temperature dependent model for fatigue accumulation in an oscillating elastoplastic plate. The full system consists of the momentum and energy balance equations, and an evolution equation for the fatigue rate. The main modeling hypothesis is that the fatigue rate is proportional to the dissipation rate. In nontrivial cases, the process develops a singularity (material failure) in finite time. (c) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：1415 / 1416
页数：2
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