2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 1: Aifantis Intl. Symp. / Multiscale Material Mechanics
| Editors: | Kongoli F, Bordas S, Estrin Y |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 300 pages |
| ISBN: | 978-1-987820-24-9 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Crack Propagation in Micropolar Materials with Defects
Elena Atroshchenko1; Stephane Bordas2;1DEPARTMENT OF MECHANICAL ENGINEERING, UNIVERSITY OF CHILE, Santiago, Chile; 2UNIVERSITY OF LUXEMBOURG, Kirchberg, Luxembourg;
Type of Paper: Regular
Id Paper: 328
Topic: 1
Abstract:
In this work, we employ the dual boundary element method to model crack propagation in plane micropolar elasticity. We use both - the singular and hyper-singular - boundary integral equations on the coincident parts of the boundary to model a crack. Next, we evaluate the J-integrals from the solution fields in the vicinity of a crack tip and use them to derive the stress and couple stress intensity factors and formulate the criteria of crack propagation.
The BEM-formulation allows to incorporate voids and inclusions of different micropolar materials with perfect and imperfect interfaces and analyze their effect on crack paths.
We study several benchmark problems and compare the results with classical elasticity.