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Influence of tunnel axis stress on mechanical response and fracture characteristics of rock surrounding tunnel subjected to gradient stress
The excavation of deep underground engineering leads to a gradient stress within surrounding rocks in the radial direction of the tunnel. In this...
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Crack propagation behavior in sandstone during unloading confining pressure under different seepage pressures
The unloading confining pressure tests were conducted on sandstone under the seepage pressure to reveal the relationships between the deformation...
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Rubbing features of the bladed drum rotor under a novel coupled axial-radial thermal effect
High temperatures in a gas turbine may lead to severe blade rubbing failure for the bladed thin drum rotor. It is essential to demonstrate such...
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DEM investigation of strength and critical state behaviours of sand under axisymmetric stress paths with different shearing modes
This paper investigates the strength and critical state (CS) behaviours of sand under axisymmetric stress paths with different shearing modes using...
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Estimating crack closure and damage stress thresholds of rock during uniaxial compression based on axial plastic strain
The quantitative determination of crack stress thresholds is of great significance to comprehend the deformation and failure of rock. In the study,...
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Experimental study on triaxial creep characteristics of the anthracite coal under low confining pressure
The creep characteristics of coal pillars left over from old mining directly affect the long-term stability of underground engineering. To study the...
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Influence of lateral pressure on mechanical behavior of different rock types under biaxial compression
Lots of field investigations have proven that layer-crack structure usually appears during the excavation process of deep rock or coal mass. To...
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Fluid-solid interaction analysis of blood flow in the atherosclerotic carotid artery using the Eulerian-Lagrangian approach
This study aims to simulate pulsatile blood flow in the carotid artery with different stenosis severities and pulse rates. The effects of different...
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Strength and failure characteristics of coal measures mudstone specimens containing a prefabricated flaw under true triaxial tests
In this study, a series of coal measures mudstone specimens containing a prefabricated flaw were subjected to true triaxial test (TTT), namely,...
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Role of inclination angle on columnar-to-equiaxed transition in the eutectic Al-5Mg-2Si alloy fabricated by laser powder bed fusion
In this study, the effect of inclination angles relative to the building direction in the additively manufactured eutectic Al-5Mg-2Si alloy was...
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Nonlinear support loss in micro/nano beam resonators induced by geometric nonlinearity
Support loss, as one of the main energy dissipation sources in micro/nano mechanical resonators, is generally evaluated by linear theories without...
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Mechanical and damage evolution characteristics of granite after heating-cooling cycles
To explore the static mechanical and damage evolution characteristics of hot dry rock, groups of uniaxial compression test and Brazilian splitting...
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A fiber-reinforced mesoscale constitutive model of tympanic membrane considering anisotropic deformation
The tympanic membrane (TM), located at the end of the ear canal, is a collagenous multi-layer soft tissue membrane with fibers highly aligned in...
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Mechanical behavior of backfilled pillar under biaxial loading
Backfilling the pillar to form a pillar-backfill collaborative bearing structure is the key to cut and fill method. The pillar-backfill bearing...
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Combined effect of rock fabric, in-situ stress, and fluid viscosity on hydraulic fracture propagation in Chang 73 lacustrine shale from the Ordos Basin
Shale oil is an important area for the increasing of crude oil reserves and production. Due to the tight structure and ultra-low permeability of...
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Numerical analysis of one-strut failure in deep braced excavation considering anisotropic clay behavior
In recent years, with the rapid development of braced excavation supported by multi-level struts, cases of continuous failure caused by local failure...
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Strengthening mechanisms in heterostructured copper films with highly (220)-oriented vertical nanotwins
In this study, heterostructured copper films containing different proportions of highly (220)-oriented vertical nanotwins were prepared by direct...
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Damage behavior in Bi-2212 round wire with 3D elastoplastic peridynamic
Bi 2 Sr 2 Ca 1 Cu 2 O 8+ x (Bi-2212) wire is the potential material for the design of the high field superconducting magnet. However, compared with excellent...
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Damage characteristics of thermally treated granite under uniaxial compression: Insights from active and passive ultrasonic techniques
To explore the effects of thermal treatment on cracking processes in granite, granite samples were thermally treated at 25–400 °C and then loaded...
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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...