文章编号：(1996)01-17-5
纯剪载荷作用下的岩石断裂①
(中南工业大学资源开发工程系，长沙410083)
摘 要: 利用四点弯剪切法研究了岩石纯剪载荷作用下的断裂规律，并提出了岩石发生真Ⅱ型断裂的条件，探讨了测定岩石真Ⅱ型断裂韧性的方法。
关键字: 剪切 断裂形式 断裂韧性
ROCK FRACTURE UNDER PURE SHEAR LOADING CONDITIONS
（Department of Resources Ezploitatzon，Central South University of Technology，Changsha 410083）
Abstract:With the four point bend shear specimens，the fracture behavior under pure shear loading condi-dons was studied and the condition for pure mode Ⅱ fracture to happen was investigated. Furthermore，the mea-surement of determining pure mode Ⅱ fracture toughness was investigated too.
Key words: shear fracture form fracture toughness
