New approach based on continuum damage mechanics with simple parameter identification to fretting fatigue life prediction

作     者：Fei SHEN Weiping HU Qingchun MENG 

作者机构：Institute of Solid Mechanics School of Aeronautics Science and EngineeringBeihang University 

出 版 物：《Applied Mathematics and Mechanics(English Edition)》 (应用数学和力学（英文版）)

年 卷 期：2015年第36卷第12期

页      面：1539-1554页

核心收录：

学科分类：08[工学] 0825[工学-航空宇航科学与技术] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(No.11002010) 

主　　题：fretting fatigue continuum damage mechanics wear fatigue life finite element (FE) analysis 

摘      要：A new continuum damage mechanics model for fretting fatigue life prediction is established. In this model, the damage evolution rate is described by two kinds of quantities. One is associated with the cyclic stress characteristics obtained by the finite element （FE） analysis, and the other is associated with the material fatigue property identified from the fatigue test data of standard specimens. The wear is modeled by the energy wear law to simulate the contact geometry evolution. A two-dimensional （2D） plane strain FE implementation of the damage mechanics model and the energy wear model is presented in the platform of ABAQUS to simulate the evolutions of the fatigue damage and the wear scar. The effect of the specimen thickness is also investigated. The predicted results of the crack initiation site and the fretting fatigue life agree well with available experimental data. Comparisons are made with the critical plane Smith- Watson-Topper （SWT） method.