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The effects of non-inverse-square-root stress singularity on some crack propagation criteria in hydraulic fracturing
Numerous crack propagation criteria have been employed in numerical investigations of hydraulic fracturing. Some criteria rely on linear elastic...
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Strengthening mechanism of steel fiber in UHPC: A new fracture phase field model
The engineering optimization of ultra-high strength concrete (UHPC) requires urgent exploration of the strengthening mechanism of steel fiber in UHPC...
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Interaction of 3D parallel internal cracks in brittle solids under thermal loading: Experiment and numerical simulation
Thermal fracture is a typical fracture. Cracks are widely present in brittle solids, and the stress concentration and propagation of cracks under...
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Energy evolution and failure characteristics of sandstone under high temperature and acidic solutions
Sandstone is commonly found in mountainous regions of China, and the mountain tunnels are often built in sandstone strata. The tunnel surrounding...
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Longitudinal and cross-sectional partitioned failure mechanism of tunnels subjected to stick-slip action of strike-slip faults
Permanent displacement occurs in strike-slip faults due to stick-slip action, causing significant damage and distinct partitioning features in...
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Numerical study on crack propagation under explosive loads
Dynamic crack propagation in brittle materials plays an important role in understanding the fracture mechanism. Numerical simulations on crack...
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Effects of confining pressure on deformation failure behavior of jointed rock
for a deeper understanding of the deformation failure behavior of jointed rock, numerical compression simulations are carried out on a rock specimen...
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An experimental investigation of failure mechanical behavior in cylindrical granite specimens containing two non-coplanar open fissures under different confining pressures
Fissures play a significant role in predicting the unstable failure of rock mass engineering. For deep rock underground engineering, rock mass...
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Determination of mode I fracture toughness of brittle materials with a new method
In this work, the fracture toughness of limestone was determined utilizing advantage edge-notched disc (END) type specimens. The normalized Phase I...
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Nonlinear static and dynamic mechanical behaviors of Nb3Sn superconducting composite wire: experiment and analysis
In this paper, the nonlinear mechanical behaviors of Nb 3 Sn superconducting composite wires have been investigated by the quasi-static...
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Deformational characteristics of sensor-enabled geobelts incorporating two failure modes in reinforced sand
Geobelt deformation is of significance when making prejudgments on potential failure planes in reinforced structures. A failure plane results from...
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Effect of high-voltage electric pulse stimulation on heated-granite: An experimental investigation
High-voltage electric pulse (HVEP) technology merits further investigation into its potential applications. The effectiveness of using HVEP to induce...
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Influence of process parameters and defect analysis in hot deep drawing process of aluminum alloy AA6082
In this study, a novel punch toolset was developed to investigate the hot stam** of AA6082-T4 sheet. The effect of the process parameters,...
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Experimental study on nonlinear mechanical behavior and sampling damage characteristics of rocks from depths of 4900–6830 m in Well Songke-2
Based on the deep cores of Well Songke-2 (SK-2), uniaxial compression tests of deep rock from 8 different depths in the 4900–6830 m range were...
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Real-time damage analysis of 2D C/SiC composite based on spectral characters of acoustic emission signals using pattern recognition
In this study, unsupervised and supervised pattern recognition were implemented in combination to achieve real-time health monitoring. Unsupervised...
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Deterioration of compressive properties of coal rocks under water and gas coupling
The compressive properties of coal under water-gas coupling were studied based on the water-rock-gas coupling test system. The compressive strength...
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Bending failure of a concrete gravity dam subjected to underwater explosion
Dam structures are prime targets during wars, and a tragedy is likely to happen in a populated area downstream of a dam exposed to explosions....
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Numerical simulation of dynamic fracture properties of rocks under different static stress conditions
When underground cavities are subjected to explosive stress waves, a uniquely damaged zone may appear due to the combined effect of dynamic loading...
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Running safety and seismic optimization of a fault-crossing simply-supported girder bridge for high-speed railways based on a train-track-bridge coupling system
Bridges crossing active faults are more likely to suffer serious damage or even collapse due to the wreck capabilities of near-fault pulses and...
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Influence of prior cyclic oxidation on high temperature low cycle fatigue life of bare and Pt-Al coated superalloy Rene®80
The prediction of fatigue life of metallic alloys is justly accepted as one of the most important phenomena in the field of metallurgical and...