Publication detail
Problem of general stress concentrators on the interface of two anisotropic materials
ŠEVEČEK, O. PROFANT, T.
Czech title
Problematika obecných koncentrátorů na rozhraní dvou anisotropních materiálů
English title
Problem of general stress concentrators on the interface of two anisotropic materials
Type
conference paper
Language
cs
Original abstract
The contribution deals with a caculation of the fracture-mechanics parameters which characterizes the stress field in the vicinicity of the crack tip terminating at the interface of two different anisotropic materials. The two main parameters – Generalized Stress Intensity Factor and T-stress in the Williams asymptotic expansion are discussed For their computation, the two state "psi"-integral method and Continuously Distributed Dislocations technique are used. There will be also discussed possible approach how to formulate the fracture criterion for the cracks positioned very close to a bi-material interface or laying on it. Possibility of crack deflection along the interface and the propagation from the surface layer into the basic material will be taken into consideration.
Czech abstract
The contribution deals with a caculation of the fracture-mechanics parameters which characterizes the stress field in the vicinicity of the crack tip terminating at the interface of two different anisotropic materials. The two main parameters – Generalized Stress Intensity Factor and T-stress in the Williams asymptotic expansion are discussed For their computation, the two state "psi"-integral method and Continuously Distributed Dislocations technique are used. There will be also discussed possible approach how to formulate the fracture criterion for the cracks positioned very close to a bi-material interface or laying on it. Possibility of crack deflection along the interface and the propagation from the surface layer into the basic material will be taken into consideration.
English abstract
The contribution deals with a caculation of the fracture-mechanics parameters which characterizes the stress field in the vicinicity of the crack tip terminating at the interface of two different anisotropic materials. The two main parameters – Generalized Stress Intensity Factor and T-stress in the Williams asymptotic expansion are discussed For their computation, the two state "psi"-integral method and Continuously Distributed Dislocations technique are used. There will be also discussed possible approach how to formulate the fracture criterion for the cracks positioned very close to a bi-material interface or laying on it. Possibility of crack deflection along the interface and the propagation from the surface layer into the basic material will be taken into consideration.
Keywords in English
generalized stress intensity factor, continuously distributed dislocations, orthotropic material
RIV year
2006
Released
30.11.2006
Publisher
Ústav fyziky materiálů AVČR
Location
Brno
ISBN
80-239-8271-0
Book
Víceúrovňový design pokrokových materiálů 2005
Edition number
1
Pages from–to
155–162
Pages count
8
BIBTEX
@inproceedings{BUT24150,
author="Oldřich {Ševeček} and Tomáš {Profant},
title="Problematika obecných koncentrátorů na rozhraní dvou anisotropních materiálů",
booktitle="Víceúrovňový design pokrokových materiálů 2005",
year="2006",
month="November",
pages="155--162",
publisher="Ústav fyziky materiálů AVČR",
address="Brno",
isbn="80-239-8271-0"
}