Abstract
Background: To describe the complex mechanical behavior of S32760 duplex stainless steel under high strain rate and high-temperature loading conditions.
Objective: The constitutive model of S32760 duplex stainless steel suitable for high strain rate was constructed from the micro-scale.
Methods: Based on the theory of dislocation dynamics, the effects of different strain rates and strains on the plastic deformation of ferrite and austenite were analyzed, and the thermal stress term and non-thermal stress term of ferrite and austenite phases were coupled.
Results: The simulation results of the model show that the S32760 dual-phase constitutive model has a high degree of fit with the experimental data at high strain rates.
Conclusion: Compared with the classical J-C model, the results show that the constitutive model of this patent has more accurate predictability than the J-C model in describing the mechanical behavior of duplex stainless steel in the high strain range of 5000s-1 to 10000s-1.
Keywords: Dislocation dynamics, S32760, constitutive model, high strain rate, hybrid optimization algorithm, duplex stainless steel.
Recent Patents on Mechanical Engineering
Title:Dynamic Constitutive Model and Numerical Simulation of S32760 Duplex Stainless Steel Based on Dislocation Theory
Volume: 17 Issue: 2
Author(s): Lin Yang*, Heqing Zhang, Minli Zheng, Xiangyuan Zhang, Jialiang Liu, Yinfeng Liu and Fukang Gong
Affiliation:
- Key Laboratory of Advanced Manufacturing and Intelligent Technology, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, China
- Qiqihar Heavy CNC Equipment Co.,Ltd., Qiqihar, 161005, P. R. China
Keywords: Dislocation dynamics, S32760, constitutive model, high strain rate, hybrid optimization algorithm, duplex stainless steel.
Abstract:
Background: To describe the complex mechanical behavior of S32760 duplex stainless steel under high strain rate and high-temperature loading conditions.
Objective: The constitutive model of S32760 duplex stainless steel suitable for high strain rate was constructed from the micro-scale.
Methods: Based on the theory of dislocation dynamics, the effects of different strain rates and strains on the plastic deformation of ferrite and austenite were analyzed, and the thermal stress term and non-thermal stress term of ferrite and austenite phases were coupled.
Results: The simulation results of the model show that the S32760 dual-phase constitutive model has a high degree of fit with the experimental data at high strain rates.
Conclusion: Compared with the classical J-C model, the results show that the constitutive model of this patent has more accurate predictability than the J-C model in describing the mechanical behavior of duplex stainless steel in the high strain range of 5000s-1 to 10000s-1.
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Cite this article as:
Yang Lin*, Zhang Heqing, Zheng Minli, Zhang Xiangyuan, Liu Jialiang, Liu Yinfeng and Gong Fukang, Dynamic Constitutive Model and Numerical Simulation of S32760 Duplex Stainless Steel Based on Dislocation Theory, Recent Patents on Mechanical Engineering 2024; 17 (2) . https://dx.doi.org/10.2174/0122127976270648231113074331
DOI https://dx.doi.org/10.2174/0122127976270648231113074331 |
Print ISSN 2212-7976 |
Publisher Name Bentham Science Publisher |
Online ISSN 1874-477X |
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