[1]孙计军,张洵安..大质量刚体亚临界速横冲钢板带数值模拟[J].郑州大学学报(工学版),2007,28(02):105-109.[doi:10.3969/j.issn.1671-6833.2007.02.027]
　SUN Jijun,Zhang Xunan.Numerical simulation of high-mass rigid body subcritical velocity cross-beam steel strip[J].Journal of Zhengzhou University (Engineering Science),2007,28(02):105-109.[doi:10.3969/j.issn.1671-6833.2007.02.027]
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大质量刚体亚临界速横冲钢板带数值模拟()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
28卷
期数:
2007年02期
页码:
105-109
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Numerical simulation of high-mass rigid body subcritical velocity cross-beam steel strip

作者:
孙计军; 张洵安.
西北工业大学,力学与土木建筑学院,陕西,西安,710072, 西北工业大学,力学与土木建筑学院,陕西,西安,710072
Author(s):
SUN Jijun; Zhang Xunan
关键词:
钢板带;  亚临界速冲击;  数值模拟;  惯性甩动;  塑性强间断波
Keywords:
DOI:
10.3969/j.issn.1671-6833.2007.02.027
文献标志码:
A
摘要:
采用ABAQUS/Explicit显式有限元分析软件对固支钢板带受大质量刚体亚临界速横向冲击进行了数值模拟.板带本构模型采用了考虑应变率和温度影响的JOHNSON-COOK模型,失效模式采用JOHNSON-COOK积累损伤的剪切失效模式.对弹性波的观测检验了模拟的可靠性.模拟结果观察到了冲击接触的不连续性和钢板带的惯性甩动伸长;颈缩拉损现象在冲击接触区边缘出现,刚体同时发生向跨中的滑移.对模拟结果的分析指出:冲击区附近钢板带塑性变形的外延传播以塑性强间断波的方式进行.
Abstract:
ABAQUS/Explicit explicit finite element analysis software was used to numerically simulate the lateral impact of solid steel strip under the subcritical velocity of large mass rigid body. The strip constitutive model adopts the JOHNSON-COOK model considering the influence of strain rate and temperature, and the failure mode adopts the shear failure mode of JOHNSON-COOK accumulated damage. The observation of elastic waves verifies the reliability of the simulation. The simulation results observe the discontinuity of impact contact and the inertial swing elongation of the steel plate strip. The neck pulling phenomenon occurs at the edge of the impact contact zone, and the rigid body slips into the span at the same time. The analysis of the simulation results shows that the epitaxial propagation of the plastic deformation of the steel plate strip near the impact zone is carried out by strong plastic intermittent wave.
更新日期/Last Update: 1900-01-01