Publication detail
FRACTURE CONDITIONS FOR A CRACK TERMINATING AT THE INTERFACE OF TWO ELASTIC MATERIALS
KNÉSL, Z. BAREŠ, P.
Czech title
Lomové podmínky trhliny s vrcholem na rozhraní dvou elastických materiálů
English title
FRACTURE CONDITIONS FOR A CRACK TERMINATING AT THE INTERFACE OF TWO ELASTIC MATERIALS
Type
conference paper
Language
en
Original abstract
This paper describes a theoretical analysis of the behaviour of a crack growing in one elastic material M1 and penetrating through the interface into the second material M2. Conditions are formulated for the stability of a crack terminating at the interface of the two materials M1 and M2. The goal of the paper is to answer the question whether a crack with its tip at the interface penetrates through the interface into the second material or stays arrested at the interface and how the corresponding critical stress, ócrit , depends on the elastic mismatch of both materials. The problem is studied under the assumptions of linear-elastic fracture mechanics and the interface is of a welded type.
Czech abstract
Práce popisuje teoretickou studii chování trhliny, která se šíří v jednom materiálu M1 a prochází přes rozhraní do druhého materiálu M2. Jsou zde formulovány podmínky stability trhliny s vrcholem na rozhraní mezi dvěma materiály M1 a M2. Cílem práce je odpovědět na otázku zda trhlina s vrcholem na rozhraní projde přes rozhraní do druhého materiálu nebo zůstane-li uvězněna na rozhraní a jak odpovídající kritické napětí závisí na elastickém mismatch materiálů. Problematika je studována za předpokladu platnosti lineárně-elastické lomové mechaniky, přičemž rozhraní je uvažováno jako svařené.
English abstract
This paper describes a theoretical analysis of the behaviour of a crack growing in one elastic material M1 and penetrating through the interface into the second material M2. Conditions are formulated for the stability of a crack terminating at the interface of the two materials M1 and M2. The goal of the paper is to answer the question whether a crack with its tip at the interface penetrates through the interface into the second material or stays arrested at the interface and how the corresponding critical stress, ócrit , depends on the elastic mismatch of both materials. The problem is studied under the assumptions of linear-elastic fracture mechanics and the interface is of a welded type.
Keywords in English
crack propagation, bimaterial, interface, double-layer pipes
RIV year
2005
Released
15.06.2005
Publisher
Polymer Service GmbH Merseburg
Location
Merseburg
Book
Deformation und Bruchverhalten von Kunststoffen 2005
Pages from–to
206–212
Pages count
7
BIBTEX
@inproceedings{BUT21714,
author="Zdeněk {Knésl} and Pavel {Bareš},
title="FRACTURE CONDITIONS FOR A CRACK TERMINATING AT THE INTERFACE OF TWO ELASTIC MATERIALS",
booktitle="Deformation und Bruchverhalten von Kunststoffen 2005",
year="2005",
month="June",
pages="206--212",
publisher="Polymer Service GmbH Merseburg",
address="Merseburg"
}