Publication detail
Crack Deflection from the Interface between Two Orthotropic Materials-Effect of Higher Order Terms in Asymptotic Analysis
DAMBORSKÝ, P. ŠEVEČEK, O. PROFANT, T. KOTOUL, M.
Czech title
Crack Deflection from the Interface between Two Orthotropic Materials-Effect of Higher Order Terms in Asymptotic Analysis
English title
Crack Deflection from the Interface between Two Orthotropic Materials-Effect of Higher Order Terms in Asymptotic Analysis
Type
conference paper
Language
en
Original abstract
The problem of crack deflection from the interface between two orthotropic materials is analyzed using the concept of Finite fracture mechanics and matched asymptotic procedure. A fracture criterion based on the energy approach is introduced for this problem. The main input for such criterion is the complex stress intensity factor calculated e.g. using the two-state integral. However for more precise predictions of the crack propagation also higher order terms of the asymptotic expansion are advisable to involve in the fracture criterion. To this end a T-stress term will be calculated and considered as the second input parameter. The matched asymptotic procedure together with FEM is used to derive the change of the potential energy induced by the incremental crack growth.
Czech abstract
The problem of crack deflection from the interface between two orthotropic materials is analyzed using the concept of Finite fracture mechanics and matched asymptotic procedure. A fracture criterion based on the energy approach is introduced for this problem. The main input for such criterion is the complex stress intensity factor calculated e.g. using the two-state integral. However for more precise predictions of the crack propagation also higher order terms of the asymptotic expansion are advisable to involve in the fracture criterion. To this end a T-stress term will be calculated and considered as the second input parameter. The matched asymptotic procedure together with FEM is used to derive the change of the potential energy induced by the incremental crack growth.
English abstract
The problem of crack deflection from the interface between two orthotropic materials is analyzed using the concept of Finite fracture mechanics and matched asymptotic procedure. A fracture criterion based on the energy approach is introduced for this problem. The main input for such criterion is the complex stress intensity factor calculated e.g. using the two-state integral. However for more precise predictions of the crack propagation also higher order terms of the asymptotic expansion are advisable to involve in the fracture criterion. To this end a T-stress term will be calculated and considered as the second input parameter. The matched asymptotic procedure together with FEM is used to derive the change of the potential energy induced by the incremental crack growth.
Keywords in Czech
Interface crack, Finite fracture mechanics, Crack kinking, Fracture criterion, T-stress
Keywords in English
Interface crack, Finite fracture mechanics, Crack kinking, Fracture criterion, T-stress
RIV year
2014
Released
06.01.2014
Publisher
Trans Tech Publications
Location
Švýcarsko
ISBN
978-3-03785-830-1
ISSN
1013-9826
Book
Advances in Fracture and Damage Mechanics XII
Volume
577-578
Number
1
Edition number
1
Pages from–to
157–160
Pages count
4
BIBTEX
@inproceedings{BUT100799,
author="Petr {Damborský} and Oldřich {Ševeček} and Tomáš {Profant} and Michal {Kotoul},
title="Crack Deflection from the Interface between Two Orthotropic Materials-Effect of Higher Order Terms in Asymptotic Analysis",
booktitle="Advances in Fracture and Damage Mechanics XII",
year="2014",
volume="577-578",
number="1",
month="January",
pages="157--160",
publisher="Trans Tech Publications",
address="Švýcarsko",
isbn="978-3-03785-830-1",
issn="1013-9826"
}