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International Journal for Multiscale Computational Engineering

Publicou 6 edições por ano

ISSN Imprimir: 1543-1649

ISSN On-line: 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

Indexed in

Analysis and Numerical Simulation of Discontinuous Displacements Modeling Fine Scale Damage in a Continuum Under Mixed-Mode Loading

Volume 2, Edição 4, 2004, 27 pages
DOI: 10.1615/IntJMultCompEng.v2.i4.30
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RESUMO

A continuum damage degradation model capable of representing mixed-mode failure is analyzed. The damage criteria are represented by multiple surfaces that bound the elastic domain in stress space. The compliance tensor is treated as an internal variable and evolves with damage. The damage evolution law is associative and of a nonhardening nature. A distributional framework is adopted for the kinematics. In order to model fine scale features, such as microcracks and microvoids, it is assumed that the solution admits discontinuous displacements. This implies singular distributional strain fields. Necessary conditions are arrived at for the existence of such solutions. It is demonstrated that an interpretation consistent with the presence of strongly discontinuous solutions is possible for this damage model. Furthermore, the analysis leads to a law that dictates the evolution of the solution in the postbifurcation regime. This is combined with an unloading modulus that degrades as damage progresses. Computations are performed in the framework of the Enhanced Strain Finite Element Method. The strain field is enhanced with functions capable of representing singular distributions. Several numerical examples that demonstrate independence of element size and mesh alignment are presented.

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