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ŠEVEČEK, O. KOTOUL, M. PROFANT, T.
Original Title
Effect of higher order asymptotic terms on the competition between crack penetration and debond at a bimaterial interface between aligned orthotropic materials
Type
journal article in Web of Science
Language
English
Original Abstract
Crack perpendicularly impinging the bimaterial interface and a crack arbitrary inclined to the interface are considered for a wide range of elastically mismatched materials. In the former case, the effect of the T-stress is investigated, in the latter case the combined effect of a weaker singularity and stronger singularity is examined for a range of crack/interface configurations. For the crack arbitrary inclined to the interface, FE solution of near-crack stress–displacement field obtained using a very fine mesh is compared with analytical singular field considering two leading terms of asymptotic expansion. As a side result it is found that the domain of singular field dominance for an arbitrary inclined crack increases with decreasing angle between the crack and the interface.
Keywords
Bimaterial interface; Crack penetration and debond; Split singularities; T-stress; Matched asymptotic expansion; Finite fracture mechanics.
Authors
ŠEVEČEK, O.; KOTOUL, M.; PROFANT, T.
RIV year
2012
Released
17. 1. 2012
ISBN
0013-7944
Periodical
Engineering Fracture Mechanics
Year of study
80
Number
1
State
United Kingdom of Great Britain and Northern Ireland
Pages from
28
Pages to
51
Pages count
24
BibTex
@article{BUT90932, author="Oldřich {Ševeček} and Michal {Kotoul} and Tomáš {Profant}", title="Effect of higher order asymptotic terms on the competition between crack penetration and debond at a bimaterial interface between aligned orthotropic materials", journal="Engineering Fracture Mechanics", year="2012", volume="80", number="1", pages="28--51", doi="10.1016/j.engfracmech.2011.11.006", issn="0013-7944" }