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A Test Method for Finding Early Dynamic Fracture of Rock: Using DIC and YOLOv5 [PDF]
Sensors, 2022 Intelligent monitoring and early warning of rock mass failure is vital. To realize the early intelligent identification of dynamic fractures in the failure process of complex fractured rocks, 3D printing of the fracture network model was used to produce ...
Qinghe Zhang +6 more
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Dynamic fracture of a dissimilar chain. [PDF]
Philos Trans A Math Phys Eng Sci, 2019 In this paper, we study the dynamic fracture of a dissimilar chain composed of two different mass-spring chains and connected with other springs. The propagation of the fault (crack) is realized under externally applied moving forces. In comparison with a homogeneous double chain, the considered structure displays some new essential features of steady ...
Gorbushin N, Mishuris G.
europepmc +4 more sources
Journal of Rock Mechanics and Geotechnical Engineering, 2019 Rocks are increasingly used in extreme environments characterised by high loading rates and high confining pressures. Thus the fracture properties of rocks under dynamic loading and confinements are critical in various rock mechanics and rock engineering
Wei Yao, Kaiwen Xia
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Crack branching at low tip speeds: spilling the T [PDF]
Journal of Theoretical, Computational and Applied Mechanics, 2023 Using the criterion that a crack will extend along the direction of maximum circumferential stress, this paper demonstrates the influence of the coupling between the crack-parallel T-stress and the tip speed on the directional (in)stability of dynamics ...
Elie Eid, Rian Seghir, Julien Réthoré
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Experimental investigation of strain rate dependent damage mechanisms in DP1000 automotive steel [PDF]
EPJ Web of Conferences, 2021 Present study aims to investigate the effect of stress state and loading rates on the damage mechanisms in a DP1000 steel using a welldesigned series of experiments. A specimen family comprising of central hole, in-plane shear and plane strain samples is
Chandran Sarath, Verleysen Patricia
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Non steady-state intersonic cracks in elastomer membranes under large static strain [PDF]
Journal of Theoretical, Computational and Applied Mechanics, 2021 Dynamic crack propagation in elastomer membranes is investigated; the focus is laid on cracks reaching the speed of shear waves in the material. The specific experimental setup developed to measure crack speed is presented in details.
Thomas Corre +3 more
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Energy dissipation and fracture characteristics of composite layered rock under dynamic load
工程科学学报, 2023 Six combinations of layered composite rocks were prepared using sandstone, dali rock, and granite. The composite rock specimens underwent a dynamic impact test using the separated Hopkinson pressure rod test system, and the failure patterns of the ...
Yang LI +4 more
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Instability in dynamic fracture [PDF]
Physical Review Letters, 1991 Cracks in brittle materials have terminal velocities far below theoretical predictions. To address this problem we have investigated the propagation of cracks in a brittle plastic (polymethylmethacrylate). Velocity measurements with resolution an order of magnitude better than past experiments reveal the existence of a critical velocity at which the ...
, Fineberg, , Gross, , Marder, , Swinney
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Dynamic fracture of tantalum under extreme tensile stress [PDF]
Science Advances, 2017 Yumoto Hirokatsu +2 more
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Corrosion and Materials Degradation, 2021 Stress corrosion cracking is a well-known phenomenon in oxide glasses. However, how amorphous phase separation (APS) alters stress corrosion cracking, and the overall mechanical response of an oxide glass is less known in literature.
Weiying Feng +6 more
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