Virtual Material Model of Joint Interfaces Considering Elastic-plastic Deformation of Asperities

被引：0
|
作者：
Cai Ligang [1 ]
Xu Tengyun [1 ]
Zhao Yongsheng [1 ]
机构：
[1] Beijing Univ Technol, Adv Mfg Technol Key Lab Beijing Municipal, Beijing 100124, Peoples R China
来源：
FRONTIERS OF MECHANICAL ENGINEERING AND MATERIALS ENGINEERING II, PTS 1 AND 2 | 2014年 / 457-458卷
关键词：
Joint interfaces; Virtual material model; Elastic-plastic deformation; Elastic modulus;
D O I：
10.4028/www.scientific.net/AMM.457-458.257
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A virtual material model of joint interfaces was established based on the Hertz contact theory and fractal theory, this model was improved by considering the influence of the elastic-plastic deformation of asperities and ameliorating the calculation methods of the elastic modulus. The simulation results of elastic-plastic considered and elastic-plastic unconsidered were compared, moreover, the finite element simulation results and experimental results were compared to fully explain the necessity of considering the influence of the elastic-plastic deformation and the the correctness of the method to calculate the elastic modulus. The research suggested that under a same load the elastic modulus of the model considering the influence of the elastic-plastic deformation was slightly larger than the un considering one, which means it could describe the characteristics of joint interfaces more accurately.
引用
收藏
页码：257 / 261
页数：5
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