论文部分内容阅读
介绍了开发MTS材料试验机应用于快速加载的高能材料动态力学的试验方法,研究了方波信号的频率对加载速率的影响,开发了低周疲劳试验机在冲击载荷下用于固体炸药在不同温度下的单轴,三轴材料动态力学性能研究的功能,得出了应变速率达到4/s。加载速率与信号频率无关,而与系统增益,液压油源大小,伺服阀流量、材料性质有关的结论
The test method of developing MTS material testing machine for dynamic loading of high energy materials is introduced. The influence of the frequency of square wave signal on the loading rate is studied, and the low cycle fatigue testing machine is developed for impact testing under different load The study of the dynamic mechanical properties of uniaxial and triaxial materials under the influence of temperature shows that the strain rate reaches 4 / s. The loading rate has nothing to do with the signal frequency, but the conclusions about the system gain, hydraulic oil source size, servo valve flow rate and material property