无氧铜动态剪切力学性能及数值模拟

Dynamic Shearing Properties of Oxygen-free Copper and Numerical Simulation

将传统的Hopkinson压杆改装成Hopkinson剪切实验装置,对无氧铜试件进行了高应变率下的剪切实验,通过Ls-Dyna有限元软件对其进行了数值模拟,分析了试件缺口部分不同宽高比对实验结果的影响。

Traditional Hopkinson pressure bar is used for the Hopkinson shear device.The high strain-rate shear tests of oxygen-free copper are conducted by using the Hopkinson shear device.Based on Ls-Dyna,the numerical simulations are carried out and presented in this paper,in order to analyze the influence of different aspect ratios of specimens for the shear tests.