Experimental Study on Fracture Toughness of Shale Based on Three-Point Bending Semi-Circular Disk Samples
Jinglin Wen,
Yongming Yin,
Mingming Zhang
Abstract:A large number of construction practice projects have found that there are many joints and microcracks in rock, concrete, and other structures, which cause the complexity of rock mechanical properties and are the main cause of geological or engineering disasters such as earthquakes, landslides, and rock bursts. To establish a rock fracture toughness evaluation method and understand the distribution range of fracture toughness of Longmaxi Formation shale, this study prepared three-point bending semi-circular di… Show more
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