钽在冲击载荷下的动态力学特性

张林; 蔡灵仓; 王悟; 李大红; 汪小松; 陈宏

doi:10.11858/gywlxb.2001.04.005

钽在冲击载荷下的动态力学特性

doi: 10.11858/gywlxb.2001.04.005

中物院流体物理研究所冲击波物理与爆轰物理实验室，四川绵阳 621900

详细信息

通讯作者:
张林

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出版历程
- 收稿日期: 2001-03-13
- 修回日期: 2001-04-17
- 发布日期: 2001-12-05

The Dynamic Mechanic Characteristics of Tantalum under Shock Loading

Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China

Funds: null

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Corresponding author: ZHANG Lin

摘要

摘要: 在对称碰撞实验中，用VISAR测试系统记录了自由面粒子速度剖面。结合材料常压弹性纵波声速的测量，利用冲击加载的双波结构，测量了钽在30 GPa以内的冲击波速度，给出了线性相关性非常好的D-up 关系，并与高压下的测量结果作了比较。同时对由自由面粒子速度剖面来计算层裂强度的模型进行了讨论，发现模型差异对钽的层裂强度的影响超过30%。
- 钽 /
- 动态断裂 /
- 层裂强度 /
- 冲击波
Abstract: Symmetrical impact experiments were performed for tantalum, the free surface velocity profiles were measured with VISAR system. Making use of the double wave configurations of shock loading, the shock wave velocities were determined at stresses below 30 GPa, and a very good linear dependent relation of D-up has been obtained. The comparison with the experimental result of high pressure region was also made. Discussion about models for calculating spall strength was conducted. It was found that the spallation strength of tantalum calculated with different models has differences up to more than 30%.
- tantalum /
- dynamic fracture /
- spall strength /
- shock wave

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参考文献(20)

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