Results 11 to 20 of about 139,831 (252)

Spatiotemporal Variations of Focal Mechanism Solutions and Stress Field of the 2019 Changning Ms 6.0 Earthquake Sequence

open access: yesFrontiers in Earth Science, 2022
The June 17, 2019, MS 6.0 Changning earthquake is the largest recorded event in the Sichuan basin, spatiotemporal variations of stress field may shed light on the seismogenic mechanism of the earthquake. We determined the focal mechanism solutions (FMSs)
Zhiwei Zhang   +5 more
doaj   +1 more source

Abnormal texture formation and mechanical anisotropy of pre-aging extruded Mg-Gd-Y-Zn-Zr alloy with large-scale

open access: yesJournal of Materials Research and Technology, 2022
In order to further explore the effect of pre-aging treatment on large-scale alloys, a pre-aging extruded Mg-9.32Gd-4.02Y-2.16Zn-0.48Zr (wt.%) alloy with large extrusion ratio (ER = 19.5) and extrusion temperature of 450 °C in large-scale (Φ308 mm × 800 ...
Zixuan Wang   +7 more
doaj   +1 more source

Incremental response of granular materials: DEM results [PDF]

open access: yes, 2009
We systematically investigate the incremental response of various equilibrium states of dense 2D model granular materials, along the biaxial compression path (\sigma 11 < \sigma 22, \sigma 12 = 0). Stress increments are applied in arbitrary directions in
Froiio, Francesco, Roux, Jean-Noël
core   +4 more sources

Strength criterion of cross-anisotropic Q3 loess

open access: yesYantu gongcheng xuebao, 2018
The structure of loess consisting of vertically extended cracks and horizontally deposited planes makes the cross-anisotropic strength behavior.
XU Ping 1, SHAO Sheng-jun 2, ZHANG Shuai 1
doaj   +1 more source

Estimate of differential stress in the upper crust from variations in topography and strike along the San Andreas fault [PDF]

open access: yes, 2005
The major bends of the San Andreas fault in California are associated with significant variations in the along-fault topography. The topography-induced perturbations in the intermediate principal stress may result in the rotation of the fault with ...
Fialko, Yuri   +2 more
core   +3 more sources

Development and application of pneumatic hollow cylinder apparatus with four-direction dynamic loads

open access: yesYantu gongcheng xuebao, 2018
Only the torque can be dynamically controlled in the traditional hollow cylinder apparatus, and the dynamic shear tests can be carried out. The existing hollow cylinder apparatus is modified to have the four-direction vibration capability, including ...
LIN Nan , YE Guan-lin , WANG Jian-hua
doaj   +1 more source

Incremental response of a model granular material by stress probing with DEM simulations [PDF]

open access: yes, 2009
International audienceWe use DEM simulations on a simple 2D model of a granular material to test for the applicability of elastoplasticity (yield criterion, flow rule) to the response to stress increments of arbitrary directions.
Froiio, Francesco, Roux, Jean-Noël
core   +3 more sources

Design of three-dimensional true earth pressure sensor and calculation of stress parameters

open access: yesYantu gongcheng xuebao, 2020
The stress state is the basis for evaluating the deformation and strength of soil. The maximum principal stress and its direction are the important basis for determining the generation and development process of sliding surface of slopes, foundation pits
CHEN Zhi-xiang 1, 2, SHAO Long-tan 1, 2, LI Shun-qun 3, GUO Xiao-xia 1, 2, TIAN Xiao-jian 1, 2
doaj   +1 more source

Method for calculating limit support pressure of face of shield tunnels considering principal stress axis rotation and soil arching effects in dry sand

open access: yesYantu gongcheng xuebao, 2023
For the deep-buried shield tunnels in dry cohesionless soils, it is critical to determine the support pressure acting on the tunnel face due to the significant soil arching effects.
ZHANG Yu 1, 2, TAO Lianjin 2, LIU Jun 1, ZHAO Xu 2, GUO Fei 3, BIAN Jin 4
doaj   +1 more source

Stress field and spin axis relaxation for inelastic triaxial ellipsoids [PDF]

open access: yes, 2012
A compact formula for the stress tensor inside a self-gravitating, triaxial ellipsoid in an arbitrary rotation state is given. It contains no singularity in the incompressible medium limit.
A. Rożek   +38 more
core   +2 more sources

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