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Volume 12
Issue 7
10.3390/met12071125
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Article

Study on Ductility Failure of Advanced High Strength Dual Phase Steel DP590 during Warm Forming Based on Extended GTN Model

by
Xingfeng Liu
,
Di Li
*,
Hui Song
,
Zipeng Lu
,
Hongjian Cui
,
Ning Jiang
and
Jiachuan Xu
School of Traffic and Vehicle Engineering, Shandong University of Technology, Zibo 255000, China
*
Author to whom correspondence should be addressed.
Metals 2022, 12(7), 1125; https://doi.org/10.3390/met12071125
Submission received: 9 June 2022 / Revised: 25 June 2022 / Accepted: 27 June 2022 / Published: 30 June 2022
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Abstract

Under warm forming, the damage parameters of extended GTN model are easily affected by temperature, and the failure of materials under warm forming is less studied by using this model. In this paper, based on the extended GTN model, the damage parameters of DP590 at different temperatures are determined by experiment and numerical simulation, studying the trend of damage parameters changing with temperature. Through the analysis of shear specimens at different angles and temperatures, we studied the changes in shear damage and void damage under different conditions, discussing the influence of shear damage and void damage on competitive fracture failure under warm forming. We modify the damage by using a function based on stress triaxiality, and present a competitive failure equation considering temperature and stress triaxiality. It is found that the extended GTN model can be applied to the failure study of DP590 steel under warm forming.
Keywords: warm forming; ductile damage; extended GTN model; stress triaxiality; DP590 warm forming; ductile damage; extended GTN model; stress triaxiality; DP590

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MDPI and ACS Style

Liu, X.; Li, D.; Song, H.; Lu, Z.; Cui, H.; Jiang, N.; Xu, J. Study on Ductility Failure of Advanced High Strength Dual Phase Steel DP590 during Warm Forming Based on Extended GTN Model. Metals 2022, 12, 1125. https://doi.org/10.3390/met12071125

AMA Style

Liu X, Li D, Song H, Lu Z, Cui H, Jiang N, Xu J. Study on Ductility Failure of Advanced High Strength Dual Phase Steel DP590 during Warm Forming Based on Extended GTN Model. Metals. 2022; 12(7):1125. https://doi.org/10.3390/met12071125

Chicago/Turabian Style

Liu, Xingfeng, Di Li, Hui Song, Zipeng Lu, Hongjian Cui, Ning Jiang, and Jiachuan Xu. 2022. "Study on Ductility Failure of Advanced High Strength Dual Phase Steel DP590 during Warm Forming Based on Extended GTN Model" Metals 12, no. 7: 1125. https://doi.org/10.3390/met12071125

APA Style

Liu, X., Li, D., Song, H., Lu, Z., Cui, H., Jiang, N., & Xu, J. (2022). Study on Ductility Failure of Advanced High Strength Dual Phase Steel DP590 during Warm Forming Based on Extended GTN Model. Metals, 12(7), 1125. https://doi.org/10.3390/met12071125

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