Out-of-plane constraint for 2D representative volume element model of dual phase steels under uniaxial tension

Damin Xia, Yaowen Li, Shipin Qin*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

摘要

Accurately capturing the microscopic mechanical response of dual-phase (DP) steels is crucial for improving their mechanical properties. Representative Volume Element (RVE) modeling is widely used to probe microstructural behavior, but due to computational restrictions, inherently three-dimensional microstructures are often simplified to two-dimensional models with out-of-plane constraints such as plane stress or plane strain. In this study, the out-of-plane constraint is investigated through 3D and 2D RVE modeling of DP steels. The 3D model was developed with synthesized microstructure and crystal plasticity to simulate microscopic stress state and macroscopic stress strain response in full 3D settings. The 2D models were developed with four different conditions for the out-of-plane effects: plane stress, plane strain, and two newly proposed average plane stress conditions. The results were evaluated by stress-strain curves, out-of-plane stress fields, as well as its statistical analyses under uniaxial tension loading condition. The findings reveal that applying the average plane stress condition to the entire 2D RVE model provides the most accurate approximation, regardless of grain morphology, martensite volume fraction, and texture.

源语言英语
文章编号113490
期刊Computational Materials Science
246
DOI
出版状态已出版 - 1月 2025

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引用此

Xia, D., Li, Y., & Qin, S. (2025). Out-of-plane constraint for 2D representative volume element model of dual phase steels under uniaxial tension. Computational Materials Science, 246, 文章 113490. https://doi.org/10.1016/j.commatsci.2024.113490