A Gibbs-potential-based framework for ideal plasticity of crystalline solids treated as a material flow through an adjustable crystal lattice space and its application to three-dimensional micropillar compression

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10332674" target="_blank" >RIV/00216208:11320/16:10332674 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21110/16:00308826
Result on the web
<a href="http://dx.doi.org/10.1016/j.ijplas.2016.09.006" target="_blank" >http://dx.doi.org/10.1016/j.ijplas.2016.09.006</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ijplas.2016.09.006" target="_blank" >10.1016/j.ijplas.2016.09.006</a>

Result language
angličtina
Original language name
A Gibbs-potential-based framework for ideal plasticity of crystalline solids treated as a material flow through an adjustable crystal lattice space and its application to three-dimensional micropillar compression
Original language description
We propose an Eulerian thermodynamically compatible model for ideal plasticity of crystalline solids treated as a material flow through an adjustable crystal lattice space. The model is based on the additive splitting of the velocity gradient into the crystal lattice part and the plastic part. The approach extends a Gibbs-potential-based formulation developed in Rajagopal and Srinivasa (2011) for obtaining the response functions for elasto-visco-plastic crystals. The framework makes constitutive assumptions for two scalar functions: the Gibbs potential and the rate of dissipation. The constitutive equations relating the stress to kinematical quantities is then determined using the condition that the rate of dissipation is maximal providing that the relevant constraints are met. The proposed model is applied to three-dimensional micropillar compression, and its features, both on the level of modelling and computer simulations, are discussed and compared to relevant studies.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BA - General mathematics
OECD FORD branch
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Project
<a href="/en/project/GAP107%2F12%2F0121" target="_blank" >GAP107/12/0121: A mechanism of ultra-fine substructure formation induced by severe plastic deformation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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