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Dynamic response and failure characteristics of combined rocks under confining pressure. [PDF]

open access: yesSci Rep, 2022
Gas explosions or coal and gas outbursts can cause transient destruction of combined coal–rock, and the dynamic mechanical response of combined coal–rock masses plays a key role in accident failure, but we now know little about the dynamic mechanical ...
Ma C, Zhu C, Zhou J, Ren J, Yu Q.
europepmc   +2 more sources

Permeability of a Macro-Cracked Concrete Effect of Confining Pressure and Modelling. [PDF]

open access: yesMaterials (Basel), 2021
The effects of confining pressure are investigated for two samples of a macro-cracked concrete. Samples are first macro-cracked with a splitting tensile strength test (Brazilian) technique.
Chen W   +4 more
europepmc   +2 more sources

The mechanism of the plant roots' soil-reinforcement based on generalized equivalent confining pressure. [PDF]

open access: yesPeerJ, 2020
Background To quantitatively evaluate the contribution of plant roots to soil shear strength, the generalized equivalent confining pressure (GECP), which is the difference in confining pressure between the reinforced and un-reinforced soil specimens at ...
Guo P   +8 more
europepmc   +2 more sources

The meso-fracturing mechanism of marble under unloading confining pressure paths and constant axial stress [PDF]

open access: yesScientific Reports, 2021
Failure tests on marble during unloading confining-pressure under constant axial stress and simulations with the particle flow code were performed. The influence mechanism of the unloading rate of the confining pressure, initial unloading stress, and ...
Linna Sun   +4 more
doaj   +2 more sources

Nano-confinement effects on liquid pressure [PDF]

open access: yesPhysics of Fluids, 2021
In this study, molecular dynamics simulations are performed to estimate the equilibrium pressure of liquid confined in nanopores. The simulations show that pressure is highly sensitive to the pore size and can significantly change from absolute positive to absolute negative values for a very small (0.1 nm) change in the pore size. The contribution from
An Zou, Shalabh C. Maroo
openaire   +2 more sources

Mechanical behaviour of soil under drying-wetting cycles and vertical confining pressure

open access: yesEnvironmental Geotechnics, 2023
A system for preparing soil specimens subjected to drying-wetting cycles whilst under vertical confining pressures is introduced with Clayey soil specimens subjected to different drying-wetting histories, then the relative performance tested using ...
Zhiming Chao, Danda Shi, G. Fowmes
semanticscholar   +1 more source

Constitutive Model of N15 Propellant considering the Confining Pressure Effect

open access: yesInternational Journal of Aerospace Engineering, 2021
To describe the effect of confining pressure on the mechanical responses of N15 propellant, a constitutive model considering the confining pressure effect was first established for N15 propellant based on the elastic-viscoelastic correspondence principle.
Tianpeng Li   +5 more
doaj   +1 more source

Research on Energy Conversion and Damage Features of Unloading Instability of Sandstone under High Stress

open access: yesAdvances in Civil Engineering, 2021
In order to explore the failure characteristics of sandstone under unloading conditions in deep zone with high stress, constant axial pressure and unloading confining pressure tests were conducted on a yellow sandstone sample under different initial ...
Zhiyuan Hou   +3 more
doaj   +1 more source

Local pressure for confined systems [PDF]

open access: yesPhysical Review E, 2018
corrections of typos of the previous version and reorganization of part of the material in an additional ...
Malgaretti, P., Bier, M.
openaire   +4 more sources

Pressure-Induced Melting of Confined Ice [PDF]

open access: yesACS Nano, 2017
The classic regelation experiment of Thomson in the 1850s deals with cutting an ice cube, followed by refreezing. The cutting was attributed to pressure-induced melting but has been challenged continuously, and only lately consensus emerged by understanding that compression shortens the O:H nonbond and lengthens the H-O bond simultaneously.
Kai Sotthewes   +4 more
openaire   +4 more sources

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