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International Journal for Multiscale Computational Engineering

Publicado 6 números por año

ISSN Imprimir: 1543-1649

ISSN En Línea: 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 FINITE-ELEMENT METHOD OF FLEXOELECTRIC EFFECTS ON NANOSCALE BEAM

Volumen 17, Edición 1, 2019, pp. 29-43
DOI: 10.1615/IntJMultCompEng.2019029391
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SINOPSIS

Flexoelectricity is a linear coupling between the strain gradient and the electric polarization, which is present in all dielectric materials. Strain gradients cause flexoelectricity to be size-dependent, especially significant for nanoscale structures. However, strain gradients involve higher-order partial derivate of displacements which brings difficulties to the solution of flexoelectric problems. The effect of strain gradient elasticity was ignored in most previous works on flexoelectricity. Thus, it is necessary to develop an effective numerical method that accounts for both strain gradient elasticity and flexoelectricity.We have developed a size-dependent finite-element model of a nanoscale Euler beam based on a reformulated strain gradient elasticity theory. The new model contains three independent material length scale parameters which capture the size effect. The developed C2 weak continuous element with two nodes has three degrees of freedom at each node. Using the Finite Element Method (FEM), with the Euler cantilever beam as an example, the effects of flexoelectricity and strain gradient elasticity on the beam have been investigated. The results were compared with those available in literature and an excellent agreement was achieved.

CITADO POR
  1. Malikan Mohammad, Eremeyev Victor A., On the Dynamics of a Visco–Piezo–Flexoelectric Nanobeam, Symmetry, 12, 4, 2020. Crossref

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