基于ANSYS的霍普金森拉杆装置设计研究  

Investigation on Design of SHTB Apparatus Based on ANSYS /LS-DYNA

作　　者：肖桂凤[1] 姜锡权[1] 阮征[2] 

机构地区：[1]解放军陆军军官学院四系,安徽合肥230031 [2]解放军理工大学国防工程学院,江苏南京210007

出　　处：《计算机仿真》2014年第8期217-221,258,共6页Computer Simulation

基　　金：陆军军官学院基金(2013XYJJ-072)

摘　　要：分离式霍普金森拉杆(Split Hopkinson Tension Bar,SHTB)装置被广泛用于研究材料的动态抗拉力学性能,对SHTB来说,入射拉伸波的峰值大小、脉冲时长及脉冲升时等直接关系拉伸实验结果的准确性。目前尚无系统性地对入射拉伸波的产生尤其是实验装置中各部件的尺寸对入射波波形影响的研究。采用ANSYS/LS-DYNA有限元分析软件对SHTB实验装置中入射波产生过程的波形叠加、幅值等问题进行数值分析,为改进SHTB实验装置提供了设计依据。Split Hopkinson Tensile Bar （SHTB） apparatus is widely used in experimentally investigating the me- chanical properties of materials. The experimental results are significantly depended on the amplitude, the shape and the wave length of incident wave. However, there＇s no research on the effects of incident wave especially the influ- ence of parts of the SHTB equipment. The mechanism of the overlying and the amplitude of incident wave by FEM has been analyzed in the paper, which can give much help for the theory basis of SHTB apparatus development and design.

关 键 词：有限元动力分析软件 霍普金森拉杆 应力波 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]