Study of the formation of adiabatic shear bands in steels
Study of the formation of adiabatic shear bands in steels
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DOI：
10.1016/s0924-0136(01)00952-9
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发表时间：
2001-12-20
影响因子：
6.3
通讯作者：
Bassim, MN
中科院分区：
文献类型：
--
作者：
Bassim, MN
利用分离式霍普金森杆系统研究了AISI 4340钢在高应变率下绝热剪切带的形成和演化。该过程也通过有限元方法建模。影响绝热剪切带发生的因素，如试样的几何形状也进行了检查。根据这些因素，人们发现，绝热剪切带更容易发生时，有不同的性能和微观结构比在其余的样品和一个特定的试样的几何形状和尺寸有利于发生高应变率，因此绝热剪切带的形成。(C)出版社：Elsevier Science B.V.
The formation and evolution of adiabatic shear bands at high strain rate deformation of AISI 4340 steel was investigated using a torsional split Hopkinson bar system. The process was also modeled by finite element methods. Factors affecting the occurrence of the adiabatic shear bands such as specimen geometry were also examined. Depending on these factors, it was found that the adiabatic shear bands occur more likely when there is differences in properties and microstructure than in the rest of the sample and that a specific specimen geometry and dimensions favor the occurrence of high strain rates and hence the formation of the adiabatic shear bands. (C) 2001 Published by Elsevier Science B.V.