Publication result 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

English Title

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

Type

WoS Article

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.

English 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.

Key words in English

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

2013

Released

17.01.2012

ISBN

0013-7944

Periodical

ENGINEERING FRACTURE MECHANICS

Volume

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"
}