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Numerical simulation on quench cracking based on oyane damage model: simulation and experimental verification
Miao Gong, Daming Tong*, Xingyun Yang, Chuanwei Li, Jianfeng Gu
aShanghai Key Laboratory of Materials Laser Processing and Modification, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
bInstitute of Materials Modification and Modelling, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Abstract
Heat treatment is a critical process extensively utilized in steel manufacturing to enhance mechanical performance. However, the heat treatment can inadvertently introduce severe residual stresses, leading to quench cracking, a detrimental defect characterized by material failure due to stress concentration, inherent microstructural imperfections, or inadequately controlled thermal cycles. In this investigation, a comprehensive finite element method (FEM) simulation framework was developed to predict quench cracking phenomena by concurrently considering temperature distributions, stress–strain responses, microstructural evolution, and damage accumulation within the material. Specifically, the Oyane damage criterion was integrated into the simulation model to quantify material degradation through critical and normalized damage factors, effectively capturing the initiation of cracking. The predictive capability of the proposed FEM-based methodology was validated by comparing simulated results with experimental observations on a V-notch steel specimen subjected to quenching. Excellent agreement between simulation-derived normalized damage factors and experimentally identified cracking locations was achieved, demonstrating the robustness and accuracy of the developed model in identifying regions at high risk of quench cracking. This validated computational approach provides a powerful predictive tool for optimizing heat treatment parameters and minimizing cracking risks in advanced steel manufacturing processes.
Numerical simulation on quench cracking based on oyane damage model: simulation and experimental verification.pdf
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