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- W2362820116 abstract "The edge cracked flattened ring(ECFR)specimens of sandstone were diametrically impacted bylarge-diameter split Hopkinson pressure bar(SHPB)in the model-I rock dynamic fracture test. Crack prop-agation gauge(CPG)is used to measure the crack initiation time and crack propagation velocity,the CPGis more sensitive than traditional strain gauge,and measured results are closer to reality. The experiment-numerical method is used to determine the dynamic initiation toughness,while the universal function com-bined with experiment-numerical method is adopted to determine the dynamic propagation toughness. Therock dynamic fracture test indicates that,in a certain range,the dynamic initiation toughness and dynamicpropagation toughness increase with increasing dynamic loading rate and crack propagation velocity,respec-tively." @default.
- W2362820116 created "2016-06-24" @default.
- W2362820116 creator A5082683117 @default.
- W2362820116 date "2014-01-01" @default.
- W2362820116 modified "2023-09-23" @default.
- W2362820116 title "Determination of model-I dynamic fracture toughness of rock using edge cracked flattened ring (ECFR) specimen" @default.
- W2362820116 hasPublicationYear "2014" @default.
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