Results 51 to 60 of about 446,787 (190)

Localization in inelastic rate dependent shearing deformations

open access: yes, 2016
Metals deformed at high strain rates can exhibit failure through formation of shear bands, a phenomenon often attributed to Hadamard instability and localization of the strain into an emerging coherent structure.
Katsaounis, Theodoros   +2 more
core   +1 more source

Shear yielding of amorphous glassy solids: Effect of temperature and strain rate [PDF]

open access: yes, 2003
We study shear yielding and steady state flow of glassy materials with molecular dynamics simulations of two standard models: amorphous polymers and bidisperse Lennard-Jones glasses.
A. Lemaître   +32 more
core   +1 more source

Influence of Overburden on Seismic Compression [PDF]

open access: yesE3S Web of Conferences, 2019
The state of practice for estimating ground settlements from seismic compression is the simplified procedure. This method was developed in the 1980's and gets its name from the relatively easy method of estimating shear strain demands from potential ...
Eric Yee
doaj   +1 more source

Shear jammed, fragile, and steady states in homogeneously strained granular materials

open access: yes, 2019
We study the jamming phase diagram of sheared granular material using a novel Couette shear set-up with multi-ring bottom. The set-up uses small basal friction forces to apply a volume-conserving linear shear with no shear band to a granular system ...
Barés, Jonathan   +4 more
core   +3 more sources

Dynamic Shear Characteristic and Fracture Feature of Inconel 690 Alloy under Different High Strain Rates and Temperatures

open access: yesAdvances in Materials Science and Engineering, 2013
The high strain shear rate behaviour of Inconel 690 alloy was investigated by using the split Hopkinson torsional bar. The shear strain rates were tested at 900 s−1, 1900 s−1, and 2600 s−1 and at temperatures of −100°C, 25°C, and 300°C, respectively.
Tao-Hsing Chen   +2 more
doaj   +1 more source

Shear modulus and Dilatancy Softening in Granular Packings above Jamming

open access: yes, 2014
We investigate experimentally the mechanical response of a monolayer of bi-disperse frictional grains to an inhomogeneous shear perturbation across the jamming transition.
Coulais, Corentin   +2 more
core   +3 more sources

Experimental investigation of shear-extension coupling effect in anisotropic reinforced concrete membrane elements

open access: yesFrontiers in Built Environment, 2022
Performance based analysis under seismic loads using the finite element method for wall-type reinforced concrete (RC) members in buildings and in important structures like liquid retaining structures, nuclear containment structures, offshore concrete ...
Ratnasai Kosuru, Amlan Kumar Sengupta
doaj   +1 more source

Rearrangements and Dilatancy for Sheared Dense Materials

open access: yes, 2001
Constitutive equations are proposed for dense materials, based on the identification of two types of free-volume activated rearrangements associated to shear and compaction.
Anaël Lemaître   +5 more
core   +1 more source

Amorphous silicon under mechanical shear deformations: shear velocity and temperature effects

open access: yes, 2011
Mechanical shear deformations lead, in some cases, to effects similar to those resulting from ion irradiation. Here we characterize the effects of shear velocity and temperature on amorphous silicon (\aSi) modelled using classical molecular dynamics ...
Kerrache, Ali   +2 more
core   +1 more source

Micro Shear Bands: Precursor for Strain Localization in Sheared Granular Materials [PDF]

open access: yesJournal of Geotechnical and Geoenvironmental Engineering, 2019
AbstractRecent studies have shown that detection of the onset and evolution of micro shear bands (MSBs) in granular materials can be improved using measurements of the kinematic behavior of particl...
Amirrahmat S.   +3 more
openaire   +3 more sources

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