Results 21 to 30 of about 32,235 (223)

A true triaxial strength criterion for rocks by gene expression programming

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
Rock strength is a crucial factor to consider when designing and constructing underground projects. This study utilizes a gene expression programming (GEP) algorithm-based model to predict the true triaxial strength of rocks, taking into account the ...
Jian Zhou   +3 more
doaj   +1 more source

Experimental Study on the Strength and Deformation Characteristics of Concrete under True Triaxial Compression after Sulfate Attack

open access: yesAdvances in Civil Engineering, 2021
To explore the mechanical properties of concrete under true triaxial static compressive load after sulfate attack, uniaxial static compression test and true triaxial static compression test at four stress ratios were carried out on concrete specimens ...
Wei Xia, Erlei Bai, Jinyu Xu, Gaojie Liu
doaj   +1 more source

Experimental study on strength and failure characteristics of mortar specimens with prefabricated cracks under uniaxial and triaxial stress

open access: yesFrontiers in Materials, 2023
Cracks in rock masses have adverse effects on their mechanical characteristics and the stability of rock mass engineering. For this experiment, uniaxial compression and true triaxial compression unloading tests were conducted on mortar specimens.
Xuwei Pan   +4 more
doaj   +1 more source

Spherical Jeans analysis for dark matter indirect detection in dwarf spheroidal galaxies - Impact of physical parameters and triaxiality [PDF]

open access: yes, 2014
Dwarf spheroidal (dSph) galaxies are among the most promising targets for the indirect detection of dark matter (DM) from annihilation and/or decay products. Empirical estimates of their DM content - and hence the magnitudes of expected signals - rely on
Bonnivard, V.   +3 more
core   +8 more sources

Simulation of thermal creep under true triaxial conditions based on TTS constitutive model

open access: yesShenzhen Daxue xuebao. Ligong ban, 2023
Monotonic and cyclic thermal loading significantly affect the axial and radial deformation, and lateral pressure coefficient of soil under true triaxial conditions, which poses new challenges to the crack resistance, settlement control and bearing ...
LIU Ziqi, CHENG Xiaohui
doaj   +1 more source

An MCMC Fitting Method for Triaxial Dark Matter Haloes [PDF]

open access: yes, 2008
Measuring the 3D distribution of mass on galaxy cluster scales is a crucial test of the LCDM model, providing constraints on the behaviour of dark matter. Recent work investigating mass distributions of individual galaxy clusters (e.g.
Bahcall   +36 more
core   +1 more source

True Triaxial Study on Aeolian Sand Subgrade

open access: yesJournal of Physics: Conference Series, 2021
Abstract The drained shear tests of aeolian sand in Tengger Desert were carried out by using the British GDS true triaxial apparatus, and the shear strength and stress-strain relationships of aeolian sand were studied under the conditions of constant average principal stress and different intermediate principal stress coefficients.
Chenyan Du, Zhigang Ma, Xuefeng Li
openaire   +1 more source

Intrinsic Shapes of Molecular Cloud Cores [PDF]

open access: yes, 2001
We conduct an analysis of the shapes of molecular cloud cores using recently compiled catalogs of observed axis ratios of individual cores mapped in ammonia or through optical selection.
Binney J.   +6 more
core   +3 more sources

Galaxy Cluster Shapes and Systematic Errors in H0 Measured by the Sunyaev-Zel'dovich Effect [PDF]

open access: yes, 1999
Imaging of the Sunyaev-Zel'dovich (SZ) effect in galaxy clusters combined with cluster plasma x-ray diagnostics can measure the cosmic distance scale to high redshift. Projecting the inverse-Compton scattering and x-ray emission along the cluster line-of-
Birkinshaw M.   +9 more
core   +2 more sources

On-sample water content measurement for a complete local monitoring in triaxial testing of unsaturated soils [PDF]

open access: yes, 2012
To provide a complete local monitoring of the state of an unsaturated soil sample during triaxial testing, a local water content measurement device was adapted to a triaxial device comprising the measurement of local displacements (Hall effect ...
Cui, Yu-Jun   +3 more
core   +6 more sources

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