摘要
本文用金相试验的方法对抗弹性能不同的铝合金靶板,作了弹坑解剖分析。发现板的抗弹性能与绝热剪切现象有关。并用一维霍布金森杆在应变率为10~2/s下测定两种铝合金的动态应力-应变曲线。把两种合金的动态强度代入绝热剪切的临界应变和临界应变率条件,分析比较了动态力学性能对靶板的绝热剪切性能及抗弹性能的影响。
The crater analysis for Al-alloy targets of different ballistic properties by metallography is presented in this paper. It is found that the ballistic property of the target is concerned with the adiabatic shear. Dynamic stress-strain curves of two kinds of Al-alloys are determined with a strain rate of one hundred per second (ε=10~2/s) by one dimensional Split Hopkinson Bar. The effect of dynamic behavior on the adiabatic shear and ballistic properties is analysed and compared with critical conditions of strain and strain rate, where yield stresses of two alloys are used.
出处
《兵工学报》
EI
CAS
1983年第3期34-44,共11页
Acta Armamentarii
