TY - JOUR
T1 - Out-of-plane constraint for 2D representative volume element model of dual phase steels under uniaxial tension
AU - Xia, Damin
AU - Li, Yaowen
AU - Qin, Shipin
N1 - Publisher Copyright:
© 2024 Elsevier B.V.
PY - 2025/1
Y1 - 2025/1
N2 - 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.
AB - 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.
KW - Average plane stress
KW - Crystal plasticity
KW - Dual phase steel
KW - Microscopic stress state
KW - Representative volume element
UR - http://www.scopus.com/inward/record.url?scp=85208016001&partnerID=8YFLogxK
U2 - 10.1016/j.commatsci.2024.113490
DO - 10.1016/j.commatsci.2024.113490
M3 - Article
AN - SCOPUS:85208016001
SN - 0927-0256
VL - 246
JO - Computational Materials Science
JF - Computational Materials Science
M1 - 113490
ER -