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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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SIZE-DEPENDENT POSTBUCKLING OF ANNULAR NANOPLATES WITH DIFFERENT BOUNDARY CONDITIONS SUBJECTED TO THE AXISYMMETRIC RADIAL LOADING INCORPORATING SURFACE STRESS EFFECTS

Volume 14, Numéro 1, 2016, pp. 65-80
DOI: 10.1615/IntJMultCompEng.2016014205
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RÉSUMÉ

This paper addresses the problem of size-dependent axisymmetric postbuckling behavior of annular shear deformable nanoplates by taking into consideration surface effects. A size-dependent continuum plate model is developed based on the Gurtin−Murdoch elasticity theory, the first-order shear deformation theory, and the von Karman geometrically nonlinear relations. It is assumed that the annular nanoplate is subjected to compressive axisymmetric radial loads. By using the Gurtin−Murdoch theory, the influences of surface stress and residual surface stress are incorporated into the formulation. Afterward, according to the virtual work principle, the size-dependent geometrically nonlinear governing equations and associated boundary conditions of first-order shear deformable nanoplates are obtained. The obtained set of nonlinear equations is discretized and solved via the generalized differential quadrature method and pseudo-arc-length continuation method. Then, the postbuckling behavior of nanoplates made of silicon and aluminum with different boundary conditions is carefully studied. The results obtained from classical and non-classical theories are compared for the first three postbuckling modes. In addition, the effects of the surface elastic modulus, residual surface stress, thickness, and radius ratio on the postbuckling response of annular nanoplates are examined.

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