| 1215钢动态应力-应变行为 |
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| 引用本文： | 朱国辉,汤亨强,柯章伟,周红兵,左遥远. 1215钢动态应力-应变行为[J]. 沈阳大学学报：自然科学版, 2013, 25(2): 104-107,127 |
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| 作者姓名： | 朱国辉 汤亨强 柯章伟 周红兵 左遥远 |
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| 作者单位： | 安徽工业大学材料科学与工程学院,安徽马鞍山,243002 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 系统研究了1215钢的热变形行为,分析了应变、应变速度和温度对钢的流变应力的影响规律.通过热模拟实验,研究分析了不同的应变速率和应变温度条件下1215钢的应力-应变曲线.以实验数据为基础,以Johnson-Cook本构模型为依据,讨论了拟合分析Johnson-Cook方程参数的方法.通过实验数据的拟合分析,得到了表达1215钢流变应力随应变、应变速度和形变温度的数学方程,为研究1215钢的动态应力-应变行为提供了基础.研究工作表明,理论计算与实验数据得到了较好的吻合.
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| 关 键 词： | 热变形 动态应力-应变曲线 Johnson-Cook模型 |
Dynamic Stress-strain Behavior of 1215 Steel |
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| Zhu Guohui , Tang Hengqiang , Ke Zhangwei , Zhou Hongbing , Zuo Yaoyuan. Dynamic Stress-strain Behavior of 1215 Steel[J]. Journal of Shenyang University, 2013, 25(2): 104-107,127 |
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| Authors: | Zhu Guohui Tang Hengqiang Ke Zhangwei Zhou Hongbing Zuo Yaoyuan |
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| Affiliation: | (School of Materials Science and Engineering, Anhui University of Technology, Ma＇anshan 243002, China) |
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| Abstract: | Effect of strain, strain rate and temperature on flow stress in 1215 steel was systematically analyzed. Stress-strain behaviors in 1215 steel were investigated with different strain rates and different deformation temperatures through heat simulation experiment. According to the Johnson- Cook model, the parameters in the model were resolved based on the experimental data and stress- strain equation was obtained in 1215 steel, which gives necessary basis for discussion of dynamic deformation behavior of 1215 steel during hot deformation. The result show calculated data was agreement with the experimental data. |
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| Keywords: | hot deformation dynamic stress-strain curve Johnson-Cook model |
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