Anisotropic Hardening of HC590 Steel Plates: Experiments and Analytical Modeling

WANG Qianjin; TIAN Xiaojuan; ZHOU Can; QU Zhensen; Ashiq Iqbal Chowdhury; ZHAO Yapeng; YAN Wei; LOU Yanshan

doi:10.3969/j.issn.1674-6457.2026.03.009

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Journal of Netshape Forming Engineering ›› 2026, Vol. 18 ›› Issue (3) : 82-90. DOI: 10.3969/j.issn.1674-6457.2026.03.009

Iron and Steel Forming

Anisotropic Hardening of HC590 Steel Plates: Experiments and Analytical Modeling

WANG Qianjin¹, TIAN Xiaojuan¹, ZHOU Can², QU Zhensen¹, Ashiq Iqbal Chowdhury², ZHAO Yapeng¹, YAN Wei¹, LOU Yanshan²

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Abstract

The purpose of this study is to accurately predict the anisotropic hardening behavior of HC590 steel plates with focuses on the influence of different loading directions on its yield stress and plastic deformation, and to verify the prediction performance of Chen-CQN yield function. In this study, the uniaxial tensile test and expansion test of HC590 steel plates in three different directions were carried out to obtain the hardening behavior data, and the influence of loading direction on the material strength and the anisotropy behavior of plastic deformation was analyzed. Based on the experimental data, the dichotomy technique was used to compare the performance of three yield function models (Chen-CQN, Yld2000-2d and Stoughton-Yoon 2009) in predicting the hardening behavior of HC590 steel plates. Finally, the yield stress prediction accuracy of the Chen-CQN model under different loading directions was verified by numerical simulation. The experimental results showed that the loading direction significantly affected the strength and plastic deformation behavior of HC590 steel plates, showing obvious anisotropy characteristics. In uniaxial tensile and bulging tests, there were significant differences in yield stress and hardening curves under different loading directions. The numerical results showed that the Chen-CQN model was superior to the other two models in predicting the hardening behavior of HC590 steel plates. The accuracy and flexibility of the Chen-CQN function were further verified by the results of the experimental hardening test. The deviation between the predicted value and the experimental value was less than 2.1%, indicating that the model could accurately characterize the change of the yield surface of HC590 steel. In conclusion, the loading direction had a significant effect on the strength and plastic deformation behavior of HC590 steel plates, and the Chen-CQN yield function was superior in predicting its hardening behavior. The accuracy and flexibility of the Chen-CQN function are further confirmed by the experimental hardening test results. Therefore, the Chen-CQN model provides a more reliable material model for the engineering application of HC590 steel plates, which can significantly improve its simulation accuracy and prediction ability under complex loading conditions. This study provides important theoretical support and experimental basis for modeling the hardening behavior of anisotropic materials.

Key words

anisotropic hardening behavior / yield stress / plastic deformation behavior / yield function / numerical analysis

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WANG Qianjin, TIAN Xiaojuan, ZHOU Can, QU Zhensen, Ashiq Iqbal Chowdhury, ZHAO Yapeng, YAN Wei, LOU Yanshan. Anisotropic Hardening of HC590 Steel Plates: Experiments and Analytical Modeling[J]. Journal of Netshape Forming Engineering. 2026, 18(3): 82-90 https://doi.org/10.3969/j.issn.1674-6457.2026.03.009

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