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International Journal for Multiscale Computational Engineering

Published 6 issues per year

ISSN Print: 1543-1649

ISSN Online: 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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Multiscale Analysis of Adiabatic Shear Bands in Tungsten Heavy Alloy Particulate Composites

Volume 4, Issue 1, 2006, pp. 95-114
DOI: 10.1615/IntJMultCompEng.v4.i1.70
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ABSTRACT

We use a multiscale approach to analyze adiabatic shear bands in a tungsten heavy alloy particulate composite deformed in plane strain tension at a nominal strain rate of 5000/s. Fifty μm diameter circular tungsten particulates are assumed to be randomly distributed and perfectly bonded to the nickel-iron matrix. The volume fraction of particulates equals 50%. We first analyze transient coupled thermo-mechanical deformations of a homogenized body with values of thermophysical material parameters equivalent to those of the particulate composite. Time histories of deformation variables on the bounding surfaces of the centrally located 2 mm × 2 mm subregion of the 10 mm × 10 mm region are recorded. Boundary conditions of surface tractions and temperature rather than of velocities and temperature are then used to analyze plane strain coupled thermomechanical deformations of the 2 mm × 2 mm composite in which tungsten particulates are randomly distributed in the central 1 mm × 1 mm subregion of the 2 mm × 2 mm region with the remaining part comprised of the equivalent homogeneous material of the 10 mm × 10 mm body. It is found that the multiscale analysis of the problem gives an adiabatic shear band initiation time of ∼ 22 μs as compared to ∼ 58 μs in the equivalent homogenized body and ∼ 50 μs in the macroanalysis of deformations of the 1 mm × 1 mm region containing a randomly distributed 50% volume fraction of 50 μm diameter tungsten particulates.

CITED BY
  1. Batra R.C., Love B.M., Consideration of microstructural effects in the analysis of adiabatic shear bands in a tungsten heavy alloy, International Journal of Plasticity, 22, 10, 2006. Crossref

  2. Bibliography, in Adiabatic Shear Localization, 2012. Crossref

  3. McAuliffe Colin, Waisman Haim, Mesh insensitive formulation for initiation and growth of shear bands using mixed finite elements, Computational Mechanics, 51, 5, 2013. Crossref

  4. Tsai C.L., Guan Y.L., Ohanehi D.C., Dillard J.G., Dillard D.A., Batra R.C., Analysis of cohesive failure in adhesively bonded joints with the SSPH meshless method, International Journal of Adhesion and Adhesives, 51, 2014. Crossref

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