摘要
在花岗岩体的弹性区域,对实测径向质点速度波形运用Lagrangian分析方法,得到了球面应力波传播的加载速率相关的应力应变关系曲线。由速率相关本构关系所作的计算结果表明,它能较正确地描述岩石中球面应力波传播过程中所体现的主要特征,即应力波峰值衰减指数大于1和波形剖面的展宽。
In the elastic stress wave region, a loading rate-dependent stress-strain relation for spherical stress wave propagating in granite has been obtained by means of Laprangian analyis of radial particle velocities measured in situ. The calculated results show that loading rate-dependent constitutive relations could properly describe the major characters of the spherical stress wave propagating in granite. i.e. the damped exponent of the peak stress is bigger than 1 and the wave profile is broadened as the wave propagating.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
1989年第3期220-227,共8页
Explosion and Shock Waves
关键词
花岗岩体
应力波
动态
本构关系
dynamic constitutive relation, stress waves, rock mechanics.
