Scratch resistance of aluminum automotive coatings based on continuum damage mechanics

被引:0
|
作者
Zhuang W.-M. [1 ]
Wang P.-Y. [1 ]
Xie D.-X. [2 ]
Chen Y.-H. [3 ]
机构
[1] State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun
[2] FAW⁃Volkswagen Automotive Co.,Ltd., Changchun
[3] Department of Aeronautics, Imperial College, London
关键词
Continuum damage mechanics(CDM); Scratch resistance of coating; Surface coating material; User-defined material subroutine;
D O I
10.13229/j.cnki.jdxbgxb20180419
中图分类号
学科分类号
摘要
Continuum Damage Mechanics (CDM) was introduced into the finite element analysis of scratch resistance of coatings. Firstly, a damage mechanics based on the material model was created. Secondly, this material model was implemented into ABAQUS solver through user defined subroutine VUMAT. Finally, a series of analyses were carried out to analyze the mechanical behavior of coatings. The material model could be used not only to capture the stress distribution of coatings, but also to predict the damage evolution of coatings under scratch loading. In addition, it is found that the loading speed and coating thickness have certain effects on scratch resistance, but the properties and thickness of substrate have little effect on it. The theoretical support was provided for the optimal design of the coating material. © 2019, Jilin University Press. All right reserved.
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页码:829 / 835
页数:6
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