Mode III crack propagation in a bimaterial plane driven by a channel of small line defects

We consider the quasi-static propagation of a Mode III crack along the interface in a bimaterial plane containing a finite array of small line defects (microcracks and rigid line inclusions). The microdefects are arranged to form a channel around the interface that can facilitate (or prevent) the crack propagation. The two dissimilar elastic materials are assumed to be weakly bonded, so that there is no kinking of the main crack from the straight path. On the basis of asymptotic formulae obtained by the authors, the propagation is analysed as a perturbation problem and the incremental crack advance is analytically derived at each position of the crack tip along the interface relative to the position of the defects. Numerical examples are provided showing potential applications of the proposed approach in the analysis of failure of composite materials. Extension to the case of infinite number of defects is discussed.



Titolo: Mode III crack propagation in a bimaterial plane driven by a channel of small line defects
Autori: Piccolroaz, Andrea; G., Mishuris; A., Movchan; N., Movchan
Autori Unitn: 
Piccolroaz, Andrea
mostra contributor esterni 
Titolo del periodico: COMPUTATIONAL MATERIALS SCIENCE
Anno di pubblicazione: 2012
Codice identificativo Scopus: 2-s2.0-84865506340
Codice identificativo ISI: WOS:000308396200050
Digital Object Identifier (DOI): http://dx.doi.org/10.1016/j.commatsci.2012.02.037
Handle: http://hdl.handle.net/11572/92481
Appare nelle tipologie:03.1 Articolo su rivista (Journal article)

File in questo prodotto:
Non ci sono file associati a questo prodotto.
Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/11572/92481
  • Citazioni
  • ND

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
 
 
 
Powered by IRIS-about IRIS-Utilizzo dei cookie
Logo CINECA  Copyright © 2020