Publication detail
Crack propagation through the interface between two polymer materials
ZOUHAR, M. HUTAŘ, P. NÁHLÍK, L.
Czech title
Šíření trhliny přes rozhranní dvou polymerních materiálů
English title
Crack propagation through the interface between two polymer materials
Type
conference paper
Language
en
Original abstract
The existence of step change of the material properties influences stress distribution near the crack tip and also influences crack propagation through the interface. This work is focused on stability conditions of the crack perpendicular to the interface between two polymer materials and discusses estimation of the critical distance d used in stability criteria for crack touching the interface. The stability condition of the crack penetrating through the interface between two polymer materials was studied and numerically investigated. The resultant values of critical load were determined by stability criterion based on strain energy density factor for different elastic mismatch of the materials considered and for different values of critical distance d. The results of this study can lead to better lifetime prediction and safer design of layered structures.
Czech abstract
Práce se zabývá vlivem skokové změny materiálových vlastností na pole napětí v okolí kořene trhliny u trhliny kolmé a s vrcholem na materiálovém rozhranní. Je zde diskutována volba a velikost parametru d, který se objevuje v kritériích stability a na základě kritéria stability založené na faktoru hustoty deformační energie je vypočítána hodnota kritického tlaku nutného pro šíření trhliny z materiálového rozhranní.
English abstract
The existence of step change of the material properties influences stress distribution near the crack tip and also influences crack propagation through the interface. This work is focused on stability conditions of the crack perpendicular to the interface between two polymer materials and discusses estimation of the critical distance d used in stability criteria for crack touching the interface. The stability condition of the crack penetrating through the interface between two polymer materials was studied and numerically investigated. The resultant values of critical load were determined by stability criterion based on strain energy density factor for different elastic mismatch of the materials considered and for different values of critical distance d. The results of this study can lead to better lifetime prediction and safer design of layered structures.
Keywords in Czech
kritéria stability, trhlina, rozhranní, MKP
Keywords in English
stability criteria, crack, material interface, FEM
RIV year
2010
Released
08.11.2010
Publisher
University of West Bohemia
Location
University of West Bohemia, Plzeň
ISBN
978-80-7043-919-7
Book
Applied and Computational Mechanics - Extended Abstracts
Pages from–to
1–2
Pages count
2
BIBTEX
@inproceedings{BUT35667,
author="Michal {Zouhar} and Pavel {Hutař} and Luboš {Náhlík},
title="Crack propagation through the interface between two polymer materials",
booktitle="Applied and Computational Mechanics - Extended Abstracts",
year="2010",
month="November",
pages="1--2",
publisher="University of West Bohemia",
address="University of West Bohemia, Plzeň",
isbn="978-80-7043-919-7"
}