Effect of rate-dependent constitutive equations on the tensile flow behaviour of DP600 using Rousselier damage model

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• 作者：I.S. Sarraf^a ; ^{sarisa@uwindsor.ca} ; A. Jenab^a ; ^{jenab@uwindsor.ca} ; K.P. Boyle^b ; ^{kevin.boyle@canada.ca} ; D.E. Green^a ; ^{dgreen@uwindsor.ca}
• 关键词：Dual phase steel ; Finite element ; Modified Johnson&ndash ; Cook ; Markov chain Monte Carlo ; Rousselier model ; Ductile damage
• 刊名：Materials & Design
• 出版年：2017
• 出版时间：5 March 2017
• 年：2017
• 卷：117
• 期：Complete
• 页码：267-279
• 全文大小：2954 K
• 卷排序：117

文摘

Non-linear regression combined with Markov chain Monte Carlo method is utilized. A combination of Voce-modified JC can predict hardening behavior of DP600 accurately. Rousselier model is calibrated to simulate uniaxial tension at different strain-rates. The onset of rapid void growth depends on the hardening rate at large strains. The predicted geometry of the fracture surface is dependent on the hardening function.