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S580B钢中低应变率动态拉伸试验方法及本构表征研究

葛宇静 白春玉 惠旭龙 刘小川

葛宇静, 白春玉, 惠旭龙, 刘小川. S580B钢中低应变率动态拉伸试验方法及本构表征研究[J]. 机械科学与技术, 2018, 37(1): 125-131. doi: 10.13433/j.cnki.1003-8728.2018.0119
引用本文: 葛宇静, 白春玉, 惠旭龙, 刘小川. S580B钢中低应变率动态拉伸试验方法及本构表征研究[J]. 机械科学与技术, 2018, 37(1): 125-131. doi: 10.13433/j.cnki.1003-8728.2018.0119
Ge Yujing, Bai Chunyu, Xi Xulong, Liu Xiaochuan. Dynamic Tension Methods and Constitutive Characterization of S580B Steel at Intermediate and Low Strain Rates[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(1): 125-131. doi: 10.13433/j.cnki.1003-8728.2018.0119
Citation: Ge Yujing, Bai Chunyu, Xi Xulong, Liu Xiaochuan. Dynamic Tension Methods and Constitutive Characterization of S580B Steel at Intermediate and Low Strain Rates[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(1): 125-131. doi: 10.13433/j.cnki.1003-8728.2018.0119

S580B钢中低应变率动态拉伸试验方法及本构表征研究

doi: 10.13433/j.cnki.1003-8728.2018.0119
详细信息
    作者简介:

    葛宇静(1989-),助理工程师,硕士,研究方向为结构冲击动力学,yujingge623@163.com

Dynamic Tension Methods and Constitutive Characterization of S580B Steel at Intermediate and Low Strain Rates

  • 摘要: 以S580B钢为研究对象,利用高速液压伺服材料试验机开展了其在中、低应变率范围的动态拉伸试验。提出了一种借助静态标定试验来间接测量动态载荷的方法,通过数字散斑相关方法测量应变场,获得了不同应变率下的真实应力-应变曲线,试验结果显示此材料具有明显的应变硬化效应和应变率敏感性。基于试验数据,采用Johnson-Cook模型拟合得到了S580B钢的动态本构方程,以其作为试验件有限元仿真的材料参数,仿真结果验证了拟合的动态本构方程能够较为准确地表征S580B钢的动态力学特性。
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出版历程
  • 收稿日期:  2016-10-16
  • 刊出日期:  2018-01-15

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