Publication detail

Effect of higher order asymptotic terms on the competition between crack penetration and debond at a bimaterial interface between aligned orthotropic materials

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"
}