Paper Title:
Multiscale Fracture Model for Quasi-Brittle Materials
  Abstract

Fracture of quasi-brittle heterogeneous materials is steered by processes at several different scale levels. These processes can progress independently or affect each other. In order to model fracture of such materials one should account for all rupture processes contributing to overall fracture process. This paper is presenting structural-temporal approach for analysis of multiscale nature of brittle fracture. Notion of spatial-temporal cell for different scale levels is introduced. Problem of experimental determination of a fixed scale level is discussed. Possible interconnections of this scale level with higher and lower scale levels are discussed. It is shown that this can give a possibility to predict fracture on a higher (real) scale level having experimental data obtained on a lower (laboratory) scale. This possibility is of extreme importance for many applications where the possibility to evaluate material strength properties on real structure scale level does not exist (ex. geological objects, big concrete structures, trunk pipelines, etc.).

  Info
Periodical
Chapter
Chapter 1: Performance of Materials
Edited by
Ezio Cadoni and Marco di Prisco
Pages
160-165
DOI
10.4028/www.scientific.net/AMM.82.160
Citation
Y. V. Petrov, V. Bratov, "Multiscale Fracture Model for Quasi-Brittle Materials", Applied Mechanics and Materials, Vol. 82, pp. 160-165, 2011
Online since
July 2011
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Price
$32.00
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