Results 41 to 50 of about 20,540 (222)

Constraining the origin of the planetary debris surrounding ZTF J0139+5245 through rotational fission of a triaxial asteroid [PDF]

, 2020
White dwarfs containing orbiting planetesimals or their debris represent crucial benchmarks by which theoretical investigations of post-main-sequence planetary systems may be calibrated.
Makarov, Valeri V., McDonald, Catriona H., Veras, Dimitri   +2 more
core   +2 more sources

Anisotropic creep model for soft soils [PDF]

, 2008
In this paper a new anisotropic model for time-dependent behaviour of soft soils is presented. The formulation is based on a previously developed isotropic creep model, assuming rotated Modified Cam Clay ellipses as contours of volumetric creep strain ...
Academy of Finland Grant 210744 (Funder), EC MRTN-CT-2004–512120 (Funder), Karstunen, Minna, Leoni, Martino, University of Strathclyde, University of Stuttgart, Vermeer, Pieter   +6 more
core   +1 more source

The influence of Massive Black Hole Binaries on the Morphology of Merger Remnants [PDF]

, 2018
Massive black hole (MBH) binaries, formed as a result of galaxy mergers, are expected to harden by dynamical friction and three-body stellar scatterings, until emission of gravitational waves (GWs) leads to their final coalescence.
Bortolas, Elisa, Dotti, Massimo, Gualandris, Alessia, Read, Justin I.   +3 more
core   +3 more sources

Experimental study of mechanical properties of highly-stressed rocks under true triaxial unloading conditions with different unloading directions

Shuiwen dizhi gongcheng dizhi
During 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, Ke WANG, Lei WENG, Weijun YOU, Zhaofei CHU, Zeyu LI   +5 more
doaj   +1 more source

Research on the mechanical characteristics of granite failure process under true triaxial stress path

Rock and Soil Mechanics, 2021
The true triaxial loading and unloading tests on granite were conducted to obtain the mechanical characteristics of the granite in the construction area of an underground cavern.
LIU Jie, ZHANG Li-ming, CONG Yu, WANG Zai-quan   +3 more
doaj   +1 more source

Cryogenic Fracturing of Wellbores Under True Triaxial-Confining Stresses: Experimental Investigation [PDF]

SPE Journal, 2018
Summary A laboratory study of cryogenic fracturing was performed to test its ability to improve oil/gas recovery from low-permeability reservoirs. Our objective is to develop well-stimulation technologies using cryogenic fluids [e.g., liquid nitrogen (LN)] to increase permeability in a large reservoir volume surrounding wells.
Cha, Minsu, Alqahtani, Naif B, Yao, Bowen, Yin, Xiaolong, Kneafsey, Timothy J, Wang, Lei, Wu, Yu-Shu, Miskimins, Jennifer L   +7 more
openaire   +3 more sources

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

, 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, Bartelmann, Bett, Broadhurst, Canizares, Clowe, Corless, Corless, Czoske, Dahle, Dodelson, Feroz, Fort, Gavazzi, Gavazzi, Hoekstra, Jing, Jullo, King, King, Kneib, Leonard, Lewis, Limousin, Lindsay J. King, Lokas, MacKay, Marshall, Navarro, Oguri, Oguri, Schneider, Schramm, Seitz, Shaw, Sheth, Virginia L. Corless   +36 more
core   +1 more source

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
core   +1 more source

Mechanical parameter evolutions and deterioration constitutive model for ductile–brittle failure of surrounding rock in high-stress underground engineering

Underground Space
The deep surrounding rock is usually in the true triaxial stress state, and previous constitutive models based on the understanding of uniaxial and conventional triaxial test results have difficulty characterizing the degradation and fracture process of ...
Zhi Zheng, Ronghua Li, Qiang Zhang, Xiaohua Huang, Wei Wang, Shuling Huang   +5 more
doaj   +1 more source

Determination method of rock characteristic stresses based on the energy growth rate

Frontiers in Earth Science, 2023
Introduction: Precisely determining the characteristic stress value of a rock progressive failure process has important theoretical and practical significance for reasonably defining the rock deformation and failure stage, mechanical mechanism, and ...
Xiaohui Liu, Xiaohui Liu, Xin Gui, Xue Qiu, You Wang, Yang Xue, Yu Zheng   +6 more
doaj   +1 more source