Research on the dynamic deformation behavior of the DP780 advanced high strength steel

被引：0
|
作者：
Tian, Cheng-Da [1 ]
Li, Da-Yong [1 ]
Peng, Ying-Hong [1 ]
Wang, Chen [2 ]
机构：
[1] Mechanical and Power Department, Shanghai Jiaotong University, Shanghai 200240, China
[2] Shanghai Baosteel Co. Ltd., Shanghai 200122, China
来源：
Suxing Gongcheng Xuebao/Journal of Plasticity Engineering | 2008年 / 15卷 / 06期
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摘要：
The dynamic deformation behavior of the DP780 was studied by the quasistatic tensile experiment and the dynamic tensile experiment under the speed of the 0.1 m/s, 2 m/s, 10 m/s and 15 m/s. The strain-stress curves were obtained under the different strain rates and the mechanical behavior of DP780 constitutive equation was established based on the Johnson-Cook model. A new constitutive equation based on the variable-tensile speed v was developed to better forecast the strain rate and stress under the dynamic impact condition. The result turns out: the new constitutive is accordance with the experimental data.
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页码：102 / 106
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