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International Journal for Multiscale Computational Engineering

Publication de 6  numéros par an

ISSN Imprimer: 1543-1649

ISSN En ligne: 1940-4352

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.4 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 2.2 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00034 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.46 SJR: 0.333 SNIP: 0.606 CiteScore™:: 3.1 H-Index: 31

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THEORETICAL AND ALGORITHMIC FORMULATION OF MODELS FOR ENERGETIC GND-BASED HARDENING IN SINGLE CRYSTALS

Volume 10, Numéro 6, 2012, pp. 551-565
DOI: 10.1615/IntJMultCompEng.2012003449
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RÉSUMÉ

In this work, a model for energetic hardening due to deformation incompatibility at large deformation is formulated in the context of continuum thermodynamics and extended crystal plasticity. In particular, this is carried out using a rate variational approach for the corresponding initial boundary value problem. This involves, in particular, the formulation of rate potentials whose form is determined in general by that of (i) the free energy density for energetic processes, (ii) the dissipation potential for kinetic processes, (iii) the boundary conditions, and (iv) the evolution relations for the internal variablelike quantities on which the free energy and dissipation potential depend. In the current context, these latter quantities include, for example, the inelastic local deformation and dislocation densities, in particular for geometrically necessary dislocations. The algorithmic formulation of the resulting model is carried out with the help of direct, and discrete variational, explicit time integration methods. To demonstrate that the model indeed predicts lengths-cale-dependent hardening behavior, simulation results are shown for the case of a 16-grain synthetic crystalline aggregate in two dimensions.

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CITÉ PAR
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