Enhanced multiscale modeling of macroscopic and microscopic residual stresses evolution during multi-thermo-mechanical processes

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• 作者：X.X. Zhang^a ; D. Wang^a ; B.L. Xiao^a ; H. Andrä ; ^b ; W.M. Gan^c ; M. Hofmann^d ; Z.Y. Ma^a ; ^{zyma@imr.ac.cn}
• 关键词：Residual stress ; Metal matrix composites ; Neutron diffraction ; Friction stir welding ; Multiscale model
• 刊名：Materials & Design
• 出版年：2017
• 出版时间：5 February 2017
• 年：2017
• 卷：115
• 期：Complete
• 页码：364-378
• 全文大小：3746 K
• 卷排序：115

文摘

A multiscale model is developed for predicting residual stresses in MMCs during multi-thermo-mechanical processes. The multiscale model is capable of handling initial stresses and integrates temperature history dependent constitutive model. Integrating both multiscale modeling and neutron diffraction, the stress evolution mechanism in MMCs is captured. The multiscale model provides promising predictions of residual stresses in MMCs during complex processes.