Publication detail
Criterion for crack kinking out of the interface of two orthotropic layers subjected to thermal and mechanical loading
DAMBORSKÝ, P. ŠEVEČEK, O. PROFANT, T. KOTOUL, M.
Czech title
Criterion for crack kinking out of the interface of two orthotropic layers subjected to thermal and mechanical loading
English title
Criterion for crack kinking out of the interface of two orthotropic layers subjected to thermal and mechanical loading
Type
conference paper
Language
en
Original abstract
The problem of crack path stability along the interface between two orthotropic elastically dissimilar materials under the presence of in-plane residual stresses is analyzed using the concept of Finite Fracture Mechanics and matched asymptotic procedure. An energy based fracture criterion is introduced for this problem and it is investigated whether and how is the criterion for the prediction of crack kinking from the interface affected by residual stresses. The complex stress intensity factor and the T-stress characterizing the stress state at the crack tip are calculated both for the thermal (residual stresses) and mechanical loading using the two-state integral. The matched asymptotic procedure together with FEM is used to derive the change of the potential energy induced by the crack growth by crack increment of finite length.
Czech abstract
The problem of crack path stability along the interface between two orthotropic elastically dissimilar materials under the presence of in-plane residual stresses is analyzed using the concept of Finite Fracture Mechanics and matched asymptotic procedure. An energy based fracture criterion is introduced for this problem and it is investigated whether and how is the criterion for the prediction of crack kinking from the interface affected by residual stresses. The complex stress intensity factor and the T-stress characterizing the stress state at the crack tip are calculated both for the thermal (residual stresses) and mechanical loading using the two-state integral. The matched asymptotic procedure together with FEM is used to derive the change of the potential energy induced by the crack growth by crack increment of finite length.
English abstract
The problem of crack path stability along the interface between two orthotropic elastically dissimilar materials under the presence of in-plane residual stresses is analyzed using the concept of Finite Fracture Mechanics and matched asymptotic procedure. An energy based fracture criterion is introduced for this problem and it is investigated whether and how is the criterion for the prediction of crack kinking from the interface affected by residual stresses. The complex stress intensity factor and the T-stress characterizing the stress state at the crack tip are calculated both for the thermal (residual stresses) and mechanical loading using the two-state integral. The matched asymptotic procedure together with FEM is used to derive the change of the potential energy induced by the crack growth by crack increment of finite length.
Keywords in Czech
Interface crack, Finite Fracture Mechanics, Crack Propagation, Fracture Criterion, FEM
Keywords in English
Interface crack, Finite Fracture Mechanics, Crack Propagation, Fracture Criterion, FEM
RIV year
2014
Released
06.01.2014
Publisher
Trans Tech Publications
Location
Švýcarsko
ISBN
978-3-03785-934-6
ISSN
1013-9826
Book
Materials Structure and Micromechanics of Fracture VII
Volume
592-593
Number
1
Edition number
1
Pages from–to
169–172
Pages count
4
BIBTEX
@inproceedings{BUT101181,
author="Petr {Damborský} and Oldřich {Ševeček} and Tomáš {Profant} and Michal {Kotoul},
title="Criterion for crack kinking out of the interface of two orthotropic layers subjected to thermal and mechanical loading",
booktitle="Materials Structure and Micromechanics of Fracture VII",
year="2014",
volume="592-593",
number="1",
month="January",
pages="169--172",
publisher="Trans Tech Publications",
address="Švýcarsko",
isbn="978-3-03785-934-6",
issn="1013-9826"
}