论文部分内容阅读
介绍了一种高能材料动静态变温三轴压缩试验装置，在熔点以下温度，通过对国产单质炸药ＴＮＴ在中等应变速率（２－４／ｓ）及准静态（３×１０－３／ｓ）条件下三轴压缩力学性能的测试，得出ＴＮＴ的杨氏模量Ｅ、泊松比ν和屈服极限Ｙ，以及当加载速率和温度改变时这些参数的变化规律。并提出三轴应力状态下屈服极限的一种确定方法。该三轴压缩试验装置以及三轴压缩应力状态下力学参数的测试、分析、处理系统为研究高能材料力学性能提供了一套完整的技术和手段。
A dynamic and static temperature changing triaxial compression test device for high energy materials is introduced. The temperature of the melting point of TNT is measured at medium strain rate (2-4 / s) and quasi-static (3 × 10-3 / s) Under the triaxial compression test, the Young’s modulus E, Poisson’s ratio ν and yield point Y of TNT were obtained, and the variation of these parameters were observed when the loading rate and temperature were changed. A method to determine the yield limit in triaxial stress state is proposed. The triaxial compression test device and the testing, analyzing and processing system of the mechanical parameters in triaxial compression stress state provide a complete set of techniques and means for studying the mechanical properties of high energy materials.