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高应变率变形的Johnson-Cook动态本构模型参数识别方法

柳爱群 黄西成

柳爱群, 黄西成. 高应变率变形的Johnson-Cook动态本构模型参数识别方法[J]. 应用数学和力学, 2014, 35(2): 219-225. doi: 10.3879/j.issn.1000-0887.2014.02.010
引用本文: 柳爱群, 黄西成. 高应变率变形的Johnson-Cook动态本构模型参数识别方法[J]. 应用数学和力学, 2014, 35(2): 219-225. doi: 10.3879/j.issn.1000-0887.2014.02.010
LIU Ai-qun, HUANG Xi-cheng. Identification of High-Strain-Rate Material Parameters in Dynamic Johnson-Cook Constitutive Model[J]. Applied Mathematics and Mechanics, 2014, 35(2): 219-225. doi: 10.3879/j.issn.1000-0887.2014.02.010
Citation: LIU Ai-qun, HUANG Xi-cheng. Identification of High-Strain-Rate Material Parameters in Dynamic Johnson-Cook Constitutive Model[J]. Applied Mathematics and Mechanics, 2014, 35(2): 219-225. doi: 10.3879/j.issn.1000-0887.2014.02.010

高应变率变形的Johnson-Cook动态本构模型参数识别方法

doi: 10.3879/j.issn.1000-0887.2014.02.010
详细信息
    作者简介:

    柳爱群(1965—),女,河北人,副教授,硕士(E-mail: 13220937928@126.com)

  • 中图分类号: O346.5

Identification of High-Strain-Rate Material Parameters in Dynamic Johnson-Cook Constitutive Model

  • 摘要: Johnson-Cook动态模型是非常重要的材料模型,被广泛应用于冲击动力学数值模拟.通过准静态单轴拉伸和单轴扭转试验获得应变硬化函数中的参数,给出Johnson-Cook模型中热软化参数和应变强化参数的确定方法.采用最优化算法识别材料参数,算法上,在参数空间采用迭代求解,寻找最优点使得实验数据与模型预测之间的偏差最小.讨论了考虑绝热温升影响的JC模型参数m的确定方法.
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    [4] 刘盼萍, 尹燕, 常列珍, 薛勇. 正火态50SiMnVB钢Johnson-Cook本构方程的建立[J]. 兵器材料科学与工程, 2009,32(1): 45-49.(LIU Pan-ping, YIN Yan, CHANG Lie-zhen, XUE Yong. Establishing of Johnson-Cook constitutive equation for normalized steel 50SiMnVB[J]. Ordnance Material Science and Engineering,2009,32(1): 45-49.(in Chinese))
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出版历程
  • 收稿日期:  2013-04-23
  • 修回日期:  2013-12-09
  • 刊出日期:  2014-02-15

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