摘要
利用霍布金森压杆实验研究了干燥和水饱和花岗岩试件的动态应力应变关系。实验得到了干燥和水饱和花岗岩试件的平均动态拉断强度，表明水饱和花岗岩试件和干燥花岗岩试件的抗拉强度与加载速率具有不同的关系。对实验中实测试件层裂片的厚度进行了计算分析，对岩石类介质的动态断裂准则提出了初步见解。
The stress-strain relations are investigated and the average dynamic abruptionstrength is obtained for dry and waterlogged granite specimens using split Hopkinson pressure barin this paper.The result shows that the dynamic tensile strength related to the loadingrates forwaterlogged granite specimens is different from that for dry ones,Finally , the dynanlic fracturecriterion for rock s has been analysed roughly using the spalling thick ness of the spocimen in theexperiment。
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
1994年第3期249-254,共6页
Explosion and Shock Waves
