Results 1 to 10 of about 2,745,409 (333)
The genesis of adiabatic shear bands. [PDF]
Sci Rep, 2016 AbstractAdiabatic shear banding (ASB) is a unique dynamic failure mechanism that results in an unpredicted catastrophic failure due to a concentrated shear deformation mode. It is universally considered as a material or structural instability and as such, ASB is hardly controllable or predictable to some extent.
Landau P +4 more
europepmc +4 more sources
Twin-coupled shear bands in an ultrafine-grained CoCrFeMnNi high-entropy alloy deformed at 77K
Materials Research Letters, 2022 Two different types of shear bands generate in ultrafine-grained (UFG) CoCrFeMnNi high-entropy alloys deformed at 77 K, i.e. commonly-observed low angle grain boundary (LAGB) type and unusual twin-coupled type.
Xiyao Li +5 more
doaj +2 more sources
Experimental evidence that shear bands in metallic glasses nucleate like cracks [PDF]
Scientific Reports, 2022 Highly time-resolved mechanical measurements, modeling, and simulations show that large shear bands in bulk metallic glasses nucleate in a manner similar to cracks. When small slips reach a nucleation size, the dynamics changes and the shear band rapidly
Alan A. Long +6 more
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Nucleation properties of isolated shear bands. [PDF]
Proc Math Phys Eng Sci, 2020 Shear banding, or localization of intense strains along narrow bands, is a plastic instability in solids with important implications for material failure in a wide range of materials and across length scales. In this article, we report on a series of experiments on the nucleation of single isolated shear bands in three model alloys ...
Yadav S, Sagapuram D.
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Viscoelastic shear banding in foam [PDF]
Physical Review E, 2008 Shear banding is an important feature of flow in complex fluids. Essentially, shear bands refer to the coexistence of flowing and non-flowing regions in driven material. Understanding the possible sources of shear banding has important implications for a
A. Kabla +5 more
core +3 more sources
Dynamic interaction of multiple shear bands. [PDF]
Sci Rep, 2018 AbstractA mechanical model for waves impinging different configurations of multiple shear bands already formed in a ductile material, allows to analyze the ways in which dynamic interactions promote failure. It is shown that the presence of more than one shear band may lead to resonance and correspondent growth of a shear band or, conversely, to its ...
Giarola D, Capuani D, Bigoni D.
europepmc +5 more sources
A minimal model for chaotic shear banding in shear-thickening fluids [PDF]
Physical Review E, 2006 We present a minimal model for spatiotemporal oscillation and rheochaos in shear-thickening complex fluids at zero Reynolds number. In the model, a tendency towards inhomogeneous flows in the form of shear bands combines with a slow structural dynamics ...
A. Aradian +15 more
core +3 more sources
Critical packing in granular shear bands [PDF]
Physical Review E, 2007 In a realistic three-dimensional setup, we simulate the slow deformation of idealized granular media composed of spheres undergoing an axisymmetric triaxial shear test.
A. Casagrande +21 more
core +3 more sources
Shear bands in dense fault gouge [PDF]
EPJ Web of Conferences, 2021 Earthquakes happen with frictional sliding, by releasing all the stresses accumulated in the prestressed surrounding medium. The geological fault gouge, coming from the wear of previous slips, acts on friction stability and plays a key role in this ...
Casas Nathalie +2 more
doaj +1 more source
Shearing of granular materials in a confined split-bottom Couette cell [PDF]
EPJ Web of Conferences, 2021 Formation of shear bands is one of the most remarkable phenomena in the dynamics of granular matter. Several parameters have been so far identified to influence the behavior of the shear bands.
Madani Mahnoush +2 more
doaj +1 more source