Residual stress field of wire arc additive manufacturing AA7075 aluminum alloy thin-walled parts by stress iteration method

被引：0
|
作者：
Zhou Z. [1 ,2 ]
Chi Y. [1 ,2 ]
Cai S. [1 ,2 ]
Zhang Q. [1 ,2 ]
Tang X. [3 ]
Zhang Y. [1 ,2 ,4 ]
机构：
[1] School of Electro-Mechanical Engineering, Guangdong University of Technology, Guangzhou
[2] Guangdong Provincial Key Laboratory of Advanced Manufacturing Technology of Marine Energy Equipment, Guangzhou
[3] Yangzhou Collaborative Innovation Research Institute, Yangzhou
[4] Guangdong Leiben Laser Technology Co., Ltd.,, Foshan
来源：
Jisuanji Jicheng Zhizao Xitong/Computer Integrated Manufacturing Systems, CIMS | 2024年 / 30卷 / 03期
基金：
中国国家自然科学基金;
关键词：
reconstruction; residual stress field; stress iteration method; wire arc additive manufacturing;
D O I：
10.13196/j.cims.2022.1037
中图分类号：
学科分类号：
摘要：
The residual stress is a key factor affecting the fatigue life of wire arc additive components. It is difficult to analyze the residual stress distribution of additive components completely and efficiently by traditional measurement and simulation. Based on the principle of eigenstrain compatibility, a new method was proposed to reconstruct the residual stress field of AA7075 aluminum alloy thin-walled by stress iteration. In this method, the finite residual stress data and basis function were used to construct the stress component, APDL language was used for secondary development of ANSYS, and the stress component was mapped to the finite element model to reconstruct the residual stress field iteratively. The results showed that the reconstructed residual stress field had little error with the measured value of X-ray diffraction method and the simulated value of thermos-elastoplastic model, which proved the effectiveness of this method on reconstructing the global residual stress field of wire arc additive manufacturing thin-walled parts. © 2024 CIMS. All rights reserved.
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页码：1127 / 1137
页数：10
相关论文
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