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International Journal for Multiscale Computational Engineering

年間 6 号発行

ISSN 印刷: 1543-1649

ISSN オンライン: 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

Nonlocal Elastic-Damage Interface Mechanical Model

巻 5, 発行 2, 2007, pp. 153-165
DOI: 10.1615/IntJMultCompEng.v5.i2.80
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要約

The paper presents a nonlocal extension of the elastic-damage interface mechanical model, which is able to describe the effects of the spatially extended microstructure on the decohesion (or fracture) process along a surface. The key feature of the proposed model is an integral constitutive relation between tractions and displacement jumps at the interface. The presence of an integral kernel brings in the model an internal length measure, which characterizes the transition from the microscale, dominated by heterogeneities and discontinuous media, to the mesoscale, characterized as an enhanced homogenized continuum with nonlocal features. The motivations and the fields of applications of the presented approach are rooted on the observation that, in many micromechanical circumstances, the potential process zone, where decohesion might develop, involves a spatial extended and organized microstructure, that produces complex elastic bridging spatial effects. The present model is a generalization of the classical (local) interface and should be adopted when the size of the microstructure, in the interface, is comparable to the size of the process zone. Typically, spatial constitutive interactions can be well modeled by means of integral (nonlocal) relations. In nonlocal constitutive equations, the stress at a point is related to the strain field at the neighboring points, by means of an integral weighting relation. The nonlocal interface constitutive relations are developed following a thermodynamically consistent approach. The damage development along the interface is driven by a nonlocal damage activation function, where the damage driving force is related to a nonlocal strain measure. Namely, a spatial average energy release rate is responsible for the local decohesion development. The model has been implemented in a finite element code, and some numerical applications of microfracture are examined.

によって引用された
  1. Ijaz Hassan, Asad Muhammad, Gornet Laurent, Alam Syed Yasir, Prediction of delamination crack growth in carbon/fiber epoxy composite laminates using non-local interface damage model, Mechanics & Industry, 15, 4, 2014. Crossref

  2. Ijaz Hassan, Gornet L., Khan M.A., Saleem W., Nisar K., Chaudry S.R., Prediction of Delamination Crack Growth in Carbon/Fiber Epoxy Composite Laminates Using a Non-Local Cohesive Zone Modeling, Advanced Materials Research, 570, 2012. Crossref

  3. La Malfa Ribolla Emma, Giambanco Giuseppe, Spada Antonino, Mesoscopic aspects of the computational homogenization with meshless modeling for masonry material, International Journal for Numerical Methods in Engineering, 121, 16, 2020. Crossref

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