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Issue:
Experimental Study on Dynamic Fracture Toughness of Rock
Author(s):
GAO Yuan
,
GONG Neng-ping
,
LUO Yufan
Pages:
13
-
16
Year:
2012
Issue:
1
Journal:
Journal of Anhui University of Science and Technology(Natural Science)
Abstract:
为了研究岩石类材料的动态力学性能及动态破坏机理,防止出现岩石爆裂造成灾难性破坏,根据中心裂纹圆盘试件断裂韧性测试方法和分离式霍普金森压杆的基本原理,在SHPB装置上测试了花岗岩的动态断裂韧性.对测试结果按照SHPB基本原理进行处理,以试件两端平均载荷带入准静态公式得到动态断裂韧性.处理结果表明,用试件两端平均载荷获得岩石动态断裂韧性的实验方法有效的;花岗岩的动态断裂韧性具有加载速率相关性,随着加载...
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