Inscrição na biblioteca: Guest
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

CONCURRENT ATOMISTIC-CONTINUUM MODEL FOR DEVELOPING SELF-CONSISTENT ELASTIC CONSTITUTIVE MODELING OF CRYSTALLINE SOLIDS WITH CRACKS

Volume 15, Edição 2, 2017, pp. 99-119
DOI: 10.1615/IntJMultCompEng.2017020072
Get accessGet access

RESUMO

Damage of materials inherently involves coupling of deformation and failure mechanisms at multiple length and time scales. This paper develops self-consistent elastic constitutive relations of crystalline materials containing atomistic scale cracks, from observations made in a concurrent multi-scale simulation system coupling atomistic and continuum domain models. The self-consistent constitutive model incorporates both nonlinearity and nonlocality to account for atomic level interactions and deformation mechanisms, especially near crack tips. Atomistic modeling in the concurrent model is done using molecular dynamics (MD), while the continuum modeling is done using a crystal elasticity finite element (FE) analysis code. The atomistic-continuum coupling is achieved by enforcing geometric compatibility and force equilibrium in an interface region. The constitutive model is calibrated by comparing with the results of MD predictions in the concurrent model. For validation, the crack tip stress field is investigated using both the coupled concurrent model and a FE model with the constitutive law. The self-consistent model exhibits excellent accuracy and enhanced efficiency in comparison with pure MD and concurrent model results.

CITADO POR
  1. McDowell David L., Multiscale Modeling of Interfaces, Dislocations, and Dislocation Field Plasticity, in Mesoscale Models, 587, 2019. Crossref

  2. Chakraborty Subhendu, Ghosh Somnath, Hyperdynamics accelerated concurrent atomistic-continuum model for developing crack propagation models in elastic crystalline materials, Computational Materials Science, 154, 2018. Crossref

  3. Yasbolaghi R., Khoei A.R., A continuum–atomistic multi-scale analysis of temperature field problems and its application in phononic nano-structures, Finite Elements in Analysis and Design, 198, 2022. Crossref

  4. Chakraborty Subhendu, Ghosh Somnath, A concurrent atomistic-crystal plasticity multiscale model for crack propagation in crystalline metallic materials, Computer Methods in Applied Mechanics and Engineering, 379, 2021. Crossref

  5. Chu Kevin, Diaz Adrian, Chen Youping, Zhu Ting, McDowell David L., Multiscale Concurrent Atomistic-Continuum (CAC) modeling of multicomponent alloys, Computational Materials Science, 201, 2022. Crossref

  6. Delfani M.R., Kosari H.R., Interaction of a semi-infinite crack with a screw dislocation within Mindlin’s first strain-gradient elasticity, Engineering Fracture Mechanics, 275, 2022. Crossref

Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa Políticas de preços e assinaturas Begell House Contato Language English 中文 Русский Português German French Spain