摘要
研究脆性岩石在强冲击载荷下的力学响应持性．采用一级轻气炮驱动的飞片撞击实验技术，测量大理岩试件组成的靶板中的应力脉冲波形；应用拉氏分析方法，探讨岩石在高应变率（104～105S-1）下的力学性质和变形特征．实验测量了一组典型的应力-时间曲线，利用拉氏分析方法对实验数据进行数值模拟，获得流场奋力学参量．分析得到岩石动态本构关系，深化了对岩石力学性质的认识．
To study the dynamic response properties of brittle rock under strong impact loading, the stress wave curves were measured using the planar impact technique. The mechanical properties and deformation characteristics of marble at the high strain rate (104~ 105 s-1 ) were analyzed by Lagrangian analysis method. An experimental and computational study of mechanical parameters of marble were outlined. The constitutive relations of marble was obtained. And then, the mechanical properties of rock response to shock-wave loading were deeply discussed.
出处
《北京理工大学学报》
EI
CAS
CSCD
2000年第2期165-170,共6页
Transactions of Beijing Institute of Technology
关键词
大理岩
力学性质
动态本构关系
岩石
强冲击载荷
marble
Lagrangian analysis
mechanical properties
dynamical constitutive relations
