Results 11 to 20 of about 5,304,813 (404)
Excitation spectra in crystal plasticity [PDF]
Physical Review Letters, 2017 Plastically deforming crystals exhibit scale-free fluctuations that are similar to those observed in driven disordered elastic systems close to depinning, but the nature of the yielding critical point is still debated.
Alava, Mikko J. +4 more
core +8 more sources
Glassy features of crystal plasticity [PDF]
Physical Review B, 2016 Crystal plasticity occurs by deformation bursts due to the avalanche-like motion of dislocations. Here we perform extensive numerical simulations of a three-dimensional dislocation dynamics model under quasistatic stress-controlled loading.
Alava, Mikko J. +4 more
core +7 more sources
Hydrodynamics of plastic deformations in electronic crystals [PDF]
Phys.Rev.B 107 (2023) 15, 155108, 2022 We construct a new hydrodynamic framework describing plastic deformations in electronic crystals. The framework accounts for pinning, phase, and momentum relaxation effects due to translational disorder, diffusion due to the presence of interstitials and vacancies, and strain relaxation due to plasticity and dislocations.
Armas, Jay +3 more
arxiv +6 more sources
Computational crystal plasticity
International Journal of Solids and Structures, 2000 To better predict material response associated with plastic deformations, plasticity models for behaviors over an extensive range of length scales are being combined to give a more comprehensive representation of the material. The breadth of the length scales naturally enters a more complete material description through the influences that features of ...
Paul R. Dawson
openalex +3 more sources
DISSOCIATION AND PLASTICITY OF COVALENT CRYSTALS [PDF]
Le Journal de Physique Colloques, 1974 After a discussion of the core structure of various types of dislocations in the diamond structure the experimental evidence is summarized for the existence and mobility of dissociated dislocations in silicon and germanium. Single armed pole sources are supposed to produce stacks of stacking faults and deformation twins.
H. Alexander
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Forming of Magnesium — Crystal Plasticity and Plastic Potentials [PDF]
AIP Conference Proceedings, 2007 Hexagonal close‐packed (hcp) metals show a deformation behavior, which is quite different from that of materials with cubic crystalline structure. As a consequence, rolled or extruded products of magnesium and its alloys exhibit a strong anisotropy and an unlike yielding in tension and compression.
D. Steglich, Stéphane Graff, W. Brocks
openalex +5 more sources
On crystal plasticity FLD analysis [PDF]
Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 1997 This paper is concerned with the computation of forming limit diagrams (FLDs) using a rate-sensitive polycrystal plasticity model together with the Marciniak–Kuczynski approach. Sheet necking is initiated from an initial imperfection in terms of a narrow band.
Pengfei Wu +2 more
openalex +3 more sources
Ultrasonic Damping and Plasticity of Crystals [PDF]
Journal of the Mechanical Behavior of Materials, 1993 B. K. Kardashev +3 more
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Crystal Plasticity Elastic-Plastic Rate-Independent Numerical Analyses of Pollycrystalline Materials
Advances in Mechanical and Materials Engineering, 2023 Macroscopic analyses of plastic forming processes give only the overall description of the problem without the consideration of mechanisms of plastic deformation and the microstructure evolution.
Marta Wójcik +3 more
doaj +1 more source
Crystal Plasticity (Volume II)
Crystals, 2022 When we announced the first volume of a Special Issue dedicated to “Crystal Plasticity”, we could not expect that a great collection of 25 excellent articles would be published [...]
Wojciech Polkowski
doaj +1 more source