Results 111 to 120 of about 20,540 (222)

The Influence of Elevated Temperature on Time‐Dependent Compaction Creep in Bleursville Sandstone

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract The inelastic compaction of sandstone in the upper crust typically occurs at depths where temperatures range from approximately 50°C $50{}^{\circ}\mathrm{C}$ to 150°C $150{}^{\circ}\mathrm{C}$. Previous experimental studies have shown that even this modest temperature increase can reduce the yield stress required to initiate inelastic ...
Mark Jefferd   +3 more
wiley   +1 more source

Effects of galaxy-halo alignment and adiabatic contraction on gravitational lens statistics

open access: yes, 2007
We study the strong gravitational lens statistics of triaxial cold dark matter (CDM) halos occupied by central early-type galaxies. We calculate the image separation distribution for double, cusp and quad configurations.
Allgood   +66 more
core   +2 more sources

Microlayer Model: A Nonlinear Finite Strain Viscoelastoplastic Formulation for Asphalt

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 1, 15 January 2026.
ABSTRACT The microlayer framework is an innovative and powerful approach for the numerical simulation of heterogeneous materials, such as aggregate‐matrix composites across multiple scales. In this study, the microlayer framework is extended for the first time to account for viscoelastic‐elastoplastic material behavior.
Marcel May   +6 more
wiley   +1 more source

Microdynamic mechanical properties and fracture evolution mechanism of monzogabbro with a true triaxial multilevel disturbance method

open access: yesInternational Journal of Mining Science and Technology
The far-field microdynamic disturbance caused by the excavation of deep mineral resources and underground engineering can induce surrounding rock damage in high-stress conditions and even lead to disasters.
Zhi Zheng   +5 more
doaj   +1 more source

Anisotropic characteristics and creep model for thin-layered rock under true triaxial compression

open access: yesJournal of Rock Mechanics and Geotechnical Engineering
The failure phenomenon of thin-layered rock tunnels not only exhibits asymmetric spatial characteristics, but also significant time-dependent characteristics under high in-situ stress, which is attributed to the time-dependent fracture of thin-layered ...
Tianxiang Song   +4 more
doaj   +1 more source

Evolution of mechanical parameters of Shuangjiangkou granite under different loading cycles and stress paths

open access: yesJournal of Rock Mechanics and Geotechnical Engineering
Surrounding rocks at different locations are generally subjected to different stress paths during the process of deep hard rock excavation. In this study, to reveal the mechanical parameters of deep surrounding rock under different stress paths, a new ...
Liangjie Gu   +4 more
doaj   +1 more source

An investigation of the plastic fracture of high strength steels [PDF]

open access: yes
Three generally recognized stages of plastic fracture in high strength steels are considered in detail. These stages consist of void initiation, void growth, and void coalescence.
Cox, T. B., Low, J. R., Jr.
core   +1 more source

Three-dimensional strength criterion for rocks: A review

open access: yesEnergy Reviews
Deep rocks are typically under a true-triaxial stress state. The strength of deep rock is thus dictated by both the direction and magnitude of principal stresses.
Jiacun Liu   +4 more
doaj   +1 more source

Performance evaluation of wheels for lunar vehicles [PDF]

open access: yes
Performance evaluation of wheels for lunar ...
Freitag, D. R.   +2 more
core   +1 more source

A discrete approach for modelling the permeability evolution of granite under triaxial and true-triaxial stress conditions

open access: yesIOP Conference Series: Earth and Environmental Science
Abstract In deep underground engineering, modelling the seepage characteristics of rock masses under complex stress conditions is crucial for the safe construction and stable operation of a project. The permeability of the rock mass is not only controlled by its internal pore structure but is also closely related to the deformation and ...
Chen He   +4 more
openaire   +1 more source

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