Results 41 to 50 of about 1,146,381 (249)
Railway ballast anisotropy testing via true triaxial apparatus [PDF]
Transportation Geotechnics, 2020 This paper aims to demonstrate the anisotropic behaviour of railway ballast via true-triaxial tests. To do so, a novel, large-scale, true-triaxial testing apparatus (GeoTT) is designed and constructed. It consists of six hydraulic actuators, designed to apply a distributed stress to large granular cubic test specimens with dimensions: 500 mm × 500 m ...
Yu ZL +4 more
openaire +3 more sources
Nonlinear criteria and the influence of the average principal stress on rocks destruction [PDF]
, 2018 Purpose. Consider possible series methods of Mohr-Coulomb nonlinear criterion that takes into account stresses in the plane of fracture. Investigate the influence of the average principal stress on rocks destruction when cylinder modeling under axial and
Olovyannyy, A
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Constitutive modeling of steel-polypropylene hybrid fiber reinforced concrete using a non-associated plasticity and its numerical implementation [PDF]
, 2014 This paper presents a non-associated plasticity-based constitutive model for hybrid steel–polypropylene fiber reinforced concrete (HFRC) materials in an attempt to characterize the stress–strain responses under multiaxial loading scenarios. Together with
Chi, Y, Xu, L, Yu, H-S
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Experimental investigation of wave propagation in three dimensions in unbounded particulate assemblies [PDF]
, 2015 Understanding wave propagation through soils is essential for site response analysis in earthquake engineering, interpretation of geophysical surveys and SASW (Spectral Analysis of Surface Waves), interpretation of laboratory bender element tests, etc ...
Camenen, Jean-Francois +5 more
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Advances in Materials Science and Engineering, 2018 The study of deformation, strength, and other mechanical characteristics of sandstone under true triaxial compression is significant for understanding failure mechanisms in rock and evaluating the stability of underground structures.
Zhaolin Li +4 more
doaj +1 more source
Shock and Vibration, 2021 To study fracture evolution and peak stress in burst risk coal samples (BRCSs) under true triaxial loading and unloading conditions, experimental and numerical research was applied to BRCSs under true triaxial stress paths entailing “x-direction ...
Wei Shen +4 more
doaj +1 more source
A Three-Dimensional Constitutive Model for Rocks Based on a Strain-Dependent Elastic Modulus
Lithosphere, 2022 Our research group previously proposed a simple two-dimensional (2D) constitutive model for rocks to simulate not only the axial stress–axial strain relationship, but also the axial stress–lateral strain relationship, with few complicated equations ...
Z. Li +5 more
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Shuiwen dizhi gongcheng dizhiDuring the excavation process of deep rock masses, the surrounding rock stress field forms alternating zones of stress increase (loading zones) and stress decrease (unloading zones) near the excavation surface, which can easily trigger instability and ...
Qian XIANG +5 more
doaj +1 more source
Sand production simulation under true-triaxial stress conditions [PDF]
International Journal of Rock Mechanics and Mining Sciences, 2013 Abstract Laboratory sanding experiments were carried out under true-triaxial stress conditions. The objective was to investigate the effect of state of stresses and fluid flow on the mechanism of sanding, and the development of the failure zone around the borehole.
Younessi, Ahmadreza +2 more
openaire +2 more sources
Modeling the gravitational potential of a cosmological dark matter halo with stellar streams [PDF]
, 2016 Stellar streams result from the tidal disruption of satellites and star clusters as they orbit a host galaxy, and can be very sensitive probes of the gravitational potential of the host system. We select and study narrow stellar streams formed in a Milky-
Hartke, Johanna +2 more
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