Numerical modeling of residual stresses in additive manufacturing products using the theory of repeatedly superimposed finite strains

被引：0
|
作者：
Levin, Vladimir A. [1 ]
Zingerman, Konstantin M. [2 ]
Vershinin, Anatoly V. [1 ]
Konovalov, Dmitry A. [1 ]
机构：
[1] Lomonosov Moscow State Univ, Moscow 119991, Russia
[2] Tver State Univ, Tver, Russia
来源：
MATHEMATICS AND MECHANICS OF SOLIDS | 2022年 / 27卷 / 10期
关键词：
Additive manufacturing; stress analysis; residual stress; superimposed finite strains; nonlinear thermoelasticity; spectral element method; POWDER BED FUSION; LARGE DEFORMATIONS; PREDICTION; ELASTICITY; DESIGN; BODIES; FIELDS;
D O I：
10.1177/10812865221096776
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An approach to the residual stress analysis of parts made by powder bed additive manufacturing is proposed. The approach is based on the theory of repeatedly superimposed finite strains. The problem statement is formulated within the framework of nonlinear thermoelasticity. The method of problem solving is developed on the base of finite and spectral element methods. The numerical modeling of a full-sized experiment is performed. In this experiment, the additive manufactured part is notched in order to estimate residual stresses in it. The obtained numerical results are in good agreement with the experimental results. It is concluded from the results that the developed approach is correct and the nonlinear effects are substantial.
引用
收藏
页码：2099 / 2109
页数：11
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