Results 31 to 40 of about 543,847 (204)

Particle Diffusion in Slow Granular Bulk Flows [PDF]

open access: yes, 2012
We probe the diffusive motion of particles in slowly sheared three dimensional granular suspensions. For sufficiently large strains, the particle dynamics exhibits diffusive Gaussian statistics, with the diffusivity proportional to the local strain rate -
Elie Wandersman   +4 more
core   +3 more sources

Strain-Rate Dependence of Plasticity and Phase Transition in [001]-Oriented Single-Crystal Iron

open access: yesCrystals, 2023
Non-equilibrium molecular dynamics simulations have been used to investigate strain-rate dependence of plasticity and phase transition in [001]-oriented single-crystal iron under ramp compression.
Nourou Amadou   +3 more
doaj   +1 more source

Loading Rate Dependence of Rock Strength Under Triaxial Compression

open access: yesFrontiers in Earth Science, 2021
Knowledge regarding the time-dependent behavior of rocks is essential to estimate the long-term deformation and stability of underground structures. The rock strength increases with the increasing loading rate.
Yang Tang   +6 more
doaj   +1 more source

Strain rate and temperature dependence of Omori law scaling constants of AE data: Implications for earthquake foreshock-aftershock sequences [PDF]

open access: yes, 2004
Little is known about the temperature and strain rate dependence of acoustic emission AE activity (AE). Hence, we carried out a preliminary series of flow-through triaxial compression tests on porous sandstones at different temperatures and strain rates.
Aki   +24 more
core   +1 more source

Decoherence of a quantum two-level system by spectral diffusion

open access: yes, 2016
We study the dephasing of an individual high-frequency tunneling two-level system (TLS) due to its interaction with an ensemble of low-frequency thermal TLSs which are described by the standard tunneling model (STM).
Matityahu, Shlomi   +3 more
core   +1 more source

A Micromechanical Model of Hardening, Rate Sensitivity and Thermal Softening in BCC Single Crystals [PDF]

open access: yes, 2001
The present paper is concerned with the development of a micromechanical model of the hardening, rate-sensitivity and thermal softening of bcc crystals. In formulating the model we specifically consider the following unit processes: double-kink formation
Cuitino, Alberto M.   +2 more
core   +4 more sources

Strain rate dependency of fractures of immature bone

open access: yesJournal of the Mechanical Behavior of Biomedical Materials, 2017
Radiological features alone do not allow the discrimination between accidental paediatric long bone fractures or those sustained by child abuse. Therefore, there is a clinical need to elucidate the mechanisms behind each fracture to provide a forensic biomechanical tool for the vulnerable child.
Cheong, VS   +3 more
openaire   +5 more sources

Dynamic necking of a near α titanium alloy at high strain rates: Experiments and modelling

open access: yesDefence Technology, 2021
The tensile behaviour of near α Ti3Al2.5 V alloy, conceived for applications in aerospace and automotive engineering, is characterized from quasi-static to high strain rates. The material is found to present noticeable strain rate sensitivity.
Long-hui Zhang   +2 more
doaj   +1 more source

A framework for analyzing hyper-viscoelastic polymers

open access: yes, 2017
Hyper-viscoelastic polymers have multiple areas of application including aerospace, biomedicine, and automotive. Their mechanical responses are therefore extremely important to understand, particularly because they exhibit strong rate and temperature ...
Siviour, Clive, Trivedi, Akash
core   +1 more source

Strain Rate Dependence of PLC Effect in AlMg4.5 Alloys

open access: yesEngineering Proceedings
Tensile tests of AlMg4.5 alloy were carried out at six strain rates to study the Portevin–Le Chatelier (PLC) effect. The measured engineering stress–time and engineering stress–engineering strain curves were evaluated by direct peak detection and ...
Imre Czinege, Dóra Harangozó
doaj   +1 more source

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