Issue |
MATEC Web Conf.
Volume 269, 2019
IIW 2018 - International Conference on Advanced Welding and Smart Fabrication Technologies
|
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Article Number | 03005 | |
Number of page(s) | 4 | |
Section | Corrosion and Failure Analysis | |
DOI | https://doi.org/10.1051/matecconf/201926903005 | |
Published online | 22 February 2019 |
Fatigue Life Prediction of Welded Joint by Microstructure-based Simulation
Department of Materials Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
Corresponding author: shiraiwa@rme.mm.t.u-tokyo.ac.jp
This paper proposes a numerical framework to predict fatigue life on welded joints by integrating several computational techniques. The framework consists of five steps: i) materials properties estimation; ii) welding simulation using thermo-mechanical finite element method; iii) macroscopic stress field analysis under cyclic loading; iv) mesoscopic stress field analysis using crystal plasticity finite element method (CPFEM); v) analysis of fatigue crack growth. The total number of cycles to failure is eventually obtained by the sum of initiation life calculated by CPFEM and propagation life calculated by X-FEM. A fatigue life of butt joint is evaluated by the proposed method. The results demonstrated the possibility of evaluating the fatigue life and its scattering by the proposed framework.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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