Finite Element Analysis and Test of Braze Residual Stress Between Different Materials

Liu Shichao; Pang Xueman; Zhou Hao; Cheng Kai

doi:doi:10.11648/j.jeee.20190703.11

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Finite Element Analysis and Test of Braze Residual Stress Between Different Materials

Liu Shichao, Pang Xueman, Zhou Hao, Cheng Kai

Published in Journal of Electrical and Electronic Engineering (Volume 7, Issue 3)

Received: 21 May 2019 Accepted: 2 July 2019 Published: 12 July 2019

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Abstract

To assess the rationality and reliability of the finite element model, finite element analysis and test were performed on the braze residual stress between two materials with different expansion coefficients. The samples used in this paper were obtained by welding tungsten - copper wafers and kovar wafers. The finite element analysis method and stress testing method are introduced briefly. In order to describe the welding process, this paper uses several related equations to illustrate the simulation calculation, and introduces the complex analysis process of the test method, and briefly introduces the processing method of the test data. The test results mainly include the residual stress values corresponding to different depths on the drilling path, and the stress state at this position is expressed by tensile stress and compressive stress. The results of finite element simulation analysis are comprehensive. In order to compare with the test results, the direction and size of tensile stress and compressive stress of the section are selected. The results of test are consistent with those of finite element analysis. It was suggested that the residual stress obtained from the finite element model is feasible and can be referenced to understand the residual stress of the actual devices. Then an example is given to verify the consistency of the two methods.

Published in	Journal of Electrical and Electronic Engineering (Volume 7, Issue 3)
DOI	10.11648/j.jeee.20190703.11
Page(s)	75-81
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Finite Element, Stress, Braze

References

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APA Style

Liu Shichao, Pang Xueman, Zhou Hao, Cheng Kai. (2019). Finite Element Analysis and Test of Braze Residual Stress Between Different Materials. Journal of Electrical and Electronic Engineering, 7(3), 75-81. https://doi.org/10.11648/j.jeee.20190703.11

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ACS Style

Liu Shichao; Pang Xueman; Zhou Hao; Cheng Kai. Finite Element Analysis and Test of Braze Residual Stress Between Different Materials. J. Electr. Electron. Eng. 2019, 7(3), 75-81. doi: 10.11648/j.jeee.20190703.11

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AMA Style

Liu Shichao, Pang Xueman, Zhou Hao, Cheng Kai. Finite Element Analysis and Test of Braze Residual Stress Between Different Materials. J Electr Electron Eng. 2019;7(3):75-81. doi: 10.11648/j.jeee.20190703.11

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@article{10.11648/j.jeee.20190703.11,
  author = {Liu Shichao and Pang Xueman and Zhou Hao and Cheng Kai},
  title = {Finite Element Analysis and Test of Braze Residual Stress Between Different Materials},
  journal = {Journal of Electrical and Electronic Engineering},
  volume = {7},
  number = {3},
  pages = {75-81},
  doi = {10.11648/j.jeee.20190703.11},
  url = {https://doi.org/10.11648/j.jeee.20190703.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jeee.20190703.11},
  abstract = {To assess the rationality and reliability of the finite element model, finite element analysis and test were performed on the braze residual stress between two materials with different expansion coefficients. The samples used in this paper were obtained by welding tungsten - copper wafers and kovar wafers. The finite element analysis method and stress testing method are introduced briefly. In order to describe the welding process, this paper uses several related equations to illustrate the simulation calculation, and introduces the complex analysis process of the test method, and briefly introduces the processing method of the test data. The test results mainly include the residual stress values corresponding to different depths on the drilling path, and the stress state at this position is expressed by tensile stress and compressive stress. The results of finite element simulation analysis are comprehensive. In order to compare with the test results, the direction and size of tensile stress and compressive stress of the section are selected. The results of test are consistent with those of finite element analysis. It was suggested that the residual stress obtained from the finite element model is feasible and can be referenced to understand the residual stress of the actual devices. Then an example is given to verify the consistency of the two methods.},
 year = {2019}
}

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TY - JOUR
T1 - Finite Element Analysis and Test of Braze Residual Stress Between Different Materials
AU - Liu Shichao
AU - Pang Xueman
AU - Zhou Hao
AU - Cheng Kai
Y1 - 2019/07/12
PY - 2019
N1 - https://doi.org/10.11648/j.jeee.20190703.11
DO - 10.11648/j.jeee.20190703.11
T2 - Journal of Electrical and Electronic Engineering
JF - Journal of Electrical and Electronic Engineering
JO - Journal of Electrical and Electronic Engineering
SP - 75
EP - 81
PB - Science Publishing Group
SN - 2329-1605
UR - https://doi.org/10.11648/j.jeee.20190703.11
AB - To assess the rationality and reliability of the finite element model, finite element analysis and test were performed on the braze residual stress between two materials with different expansion coefficients. The samples used in this paper were obtained by welding tungsten - copper wafers and kovar wafers. The finite element analysis method and stress testing method are introduced briefly. In order to describe the welding process, this paper uses several related equations to illustrate the simulation calculation, and introduces the complex analysis process of the test method, and briefly introduces the processing method of the test data. The test results mainly include the residual stress values corresponding to different depths on the drilling path, and the stress state at this position is expressed by tensile stress and compressive stress. The results of finite element simulation analysis are comprehensive. In order to compare with the test results, the direction and size of tensile stress and compressive stress of the section are selected. The results of test are consistent with those of finite element analysis. It was suggested that the residual stress obtained from the finite element model is feasible and can be referenced to understand the residual stress of the actual devices. Then an example is given to verify the consistency of the two methods.
VL - 7
IS - 3
ER -

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Author Information

Liu Shichao

Nanjing Electronic Devices Institute, Nanjing, China
Pang Xueman

Nanjing Electronic Devices Institute, Nanjing, China
Zhou Hao

Nanjing Electronic Devices Institute, Nanjing, China
Cheng Kai

Nanjing Electronic Devices Institute, Nanjing, China

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Plain Text BibTeX RIS

APA Style

Liu Shichao, Pang Xueman, Zhou Hao, Cheng Kai. (2019). Finite Element Analysis and Test of Braze Residual Stress Between Different Materials. Journal of Electrical and Electronic Engineering, 7(3), 75-81. https://doi.org/10.11648/j.jeee.20190703.11

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ACS Style

Liu Shichao; Pang Xueman; Zhou Hao; Cheng Kai. Finite Element Analysis and Test of Braze Residual Stress Between Different Materials. J. Electr. Electron. Eng. 2019, 7(3), 75-81. doi: 10.11648/j.jeee.20190703.11

Copy | Download

AMA Style

Liu Shichao, Pang Xueman, Zhou Hao, Cheng Kai. Finite Element Analysis and Test of Braze Residual Stress Between Different Materials. J Electr Electron Eng. 2019;7(3):75-81. doi: 10.11648/j.jeee.20190703.11

Copy | Download

@article{10.11648/j.jeee.20190703.11,
  author = {Liu Shichao and Pang Xueman and Zhou Hao and Cheng Kai},
  title = {Finite Element Analysis and Test of Braze Residual Stress Between Different Materials},
  journal = {Journal of Electrical and Electronic Engineering},
  volume = {7},
  number = {3},
  pages = {75-81},
  doi = {10.11648/j.jeee.20190703.11},
  url = {https://doi.org/10.11648/j.jeee.20190703.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jeee.20190703.11},
  abstract = {To assess the rationality and reliability of the finite element model, finite element analysis and test were performed on the braze residual stress between two materials with different expansion coefficients. The samples used in this paper were obtained by welding tungsten - copper wafers and kovar wafers. The finite element analysis method and stress testing method are introduced briefly. In order to describe the welding process, this paper uses several related equations to illustrate the simulation calculation, and introduces the complex analysis process of the test method, and briefly introduces the processing method of the test data. The test results mainly include the residual stress values corresponding to different depths on the drilling path, and the stress state at this position is expressed by tensile stress and compressive stress. The results of finite element simulation analysis are comprehensive. In order to compare with the test results, the direction and size of tensile stress and compressive stress of the section are selected. The results of test are consistent with those of finite element analysis. It was suggested that the residual stress obtained from the finite element model is feasible and can be referenced to understand the residual stress of the actual devices. Then an example is given to verify the consistency of the two methods.},
 year = {2019}
}

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