摘要
采用短棒拉伸、直切口三点弯曲梁、紧凑拉伸及带裂纹的厚壁筒试件等四种试验方法测定了花岗岩、大理岩、辉长岩及红砂岩四种岩石的断裂韧度K_(IC).实验结果表明:用短棒拉伸试件测定的K_(IC)的值,明显地高于其余三种方法所测定的值。
The values of fracture toughess K_(IC) of granite, marble, gabbro and sandstone have been measured with specimens in the form of short rod in tension, single-edge cracked round bar in three-point bending, compact tension and thick-walled cylinder with an internal prenotch. Experimental results show that the values of K_(IC) measured with short rod specimens are remarkably higher than those measured with the others.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
1990年第4期328-333,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
地震科学联合基金会
