摘要
根据CCCD-SHPB测试原理,利用平台巴西圆盘研究温度对岩石类材料断裂性能的影响,实验过程中通过控制加载脉冲,使得测试试件的加载速率基本一致,仅改变试件测试的环境温度.根据中心裂纹圆盘试件断裂韧性测试方法,在SHPB装置上完成岩石类材料的动态断裂韧度随温度变化的测试,获得了不同温度下中心裂纹巴西圆盘岩石试件的动态断裂韧度.
Based on the principles of CCCD-SHPB tests, platform Brazilian disc is used to study the effect of temperature on the fracture properties of rock materials. The loading rate of the test specimen remains stable by controlling the load pulse in the tests, while only the specimen test environment temperature is changed. According to the method for testing the fracture toughness of central crack disk specimens, the changes in dynamic fracture toughness of rock materials are tested in the SHPB device when the temperature changes. The dynamic fracture toughness of Brazilian disc center rock specimens is achieved in different temperatures.
出处
《南京工程学院学报（自然科学版）》
2013年第4期39-46,共8页
Journal of Nanjing Institute of Technology(Natural Science Edition)
关键词
断裂力学
断裂韧度
巴西圆盘
SHPB系统
温度
fracture mechanics
fracture toughness
Brazilian disc
SHPB system
temperature
