Influence of intermittent opening density on mechanical behavior and fracture characteristics of 3D-printed rock
Theoretical and Applied Fracture Mechanics（2023）
Abstract
•The effect of the intermittent opening density on sand 3D printed rock-like is studied.•The crack types and coalescence types are identified by velocity vector analysis.•A DIC-based damge evaluation is proposed to explore the damage evolution of rock.•Mechanical interpretation of the coalescence type is performed using RFPA simulation.
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Key words
Rock mechanics,Intermittent opening density,3D printing,Rock failure process analysis,Digital image correlation,Damage evolution
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