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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

A MULTISCALE MODELING SCHEME BASED ON PERIDYNAMIC THEORY

Volume 12, Edição 3, 2014, pp. 223-248
DOI: 10.1615/IntJMultCompEng.2014007954
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RESUMO

In this paper a multiscale modeling framework has been established between peridynamics (PD) and atomistic models. Typically, atomistic models are governed by molecular dynamics schemes (MD). Both PD and MD formulations are nonlocal. The atomistic model is coupled with a PD-based continuum model through a hierarchical multiscale modeling framework. In this framework, PD models at higher length scale act as an external environment for the PD models at a smaller length scale. Based on a similar idea, a smaller length scale PD model is seamlessly linked with the atomistic model. At the end of this hierarchical downscaling, information such as displacement field, deformation, etc. were captured in the atomistic region. The updated atomistic model is interconnected with all the PD models in the length scale hierarchy. This multiscale modeling scheme is named as "PFHMM: A peridynamics-based framework for hierarchical multiscale modeling." In this paper the mathematical formulation of PFHMM is discussed rigorously. Also, a thorough mathematical analysis is carried out in order to show that the issue with wave reflection between different models at different length scales is absent in PFHMM. The proposed multiscale modeling scheme is illustrated for different cases. It is seen that the displacement field has a strong correlation with the length scale of the material. Such an observation was verified with the experimental observation (i.e., example 4 on nanoindentation).

CITADO POR
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