Detail publikace
CONDITIONS FOR CRACK INITIATION IN AN ORTHOTROPIC BI-MATERIAL CORNER DETERMINED BY MEANS OF THE STRAIN ENERGY DENSITY FACTOR
PROFANT, T. KLUSÁK, J. KOTOUL, M.
Český název
CONDITIONS FOR CRACK INITIATION IN AN ORTHOTROPIC BI-MATERIAL CORNER DETERMINED BY MEANS OF THE STRAIN ENERGY DENSITY FACTOR
Anglický název
CONDITIONS FOR CRACK INITIATION IN AN ORTHOTROPIC BI-MATERIAL CORNER DETERMINED BY MEANS OF THE STRAIN ENERGY DENSITY FACTOR
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
en
Originální abstrakt
A bi-material notch composed of two orthotropic parts is considered. The stress components and the strain energy density are expressed using the Stroh-Eshelby-Lekhnitskii formalism for plane elasticity. The stress singular exponents and corresponding eigenvectors are the solution of the eigenvalue problem leading from the prescribed notch boundary and compatibility conditions. Generally, there is more than one solution of this eigenvalue problem and consequently the stress intensity factors. The potential direction of crack initiation is determined from the local minimum of the mean value of the strain energy density factor in both materials. Following the assumption of the same mechanism of the rupture in the case of the crack and the notch, an expression for the critical values of the stress intensity factor can be obtained.
Český abstrakt
A bi-material notch composed of two orthotropic parts is considered. The stress components and the strain energy density are expressed using the Stroh-Eshelby-Lekhnitskii formalism for plane elasticity. The stress singular exponents and corresponding eigenvectors are the solution of the eigenvalue problem leading from the prescribed notch boundary and compatibility conditions. Generally, there is more than one solution of this eigenvalue problem and consequently the stress intensity factors. The potential direction of crack initiation is determined from the local minimum of the mean value of the strain energy density factor in both materials. Following the assumption of the same mechanism of the rupture in the case of the crack and the notch, an expression for the critical values of the stress intensity factor can be obtained.
Anglický abstrakt
A bi-material notch composed of two orthotropic parts is considered. The stress components and the strain energy density are expressed using the Stroh-Eshelby-Lekhnitskii formalism for plane elasticity. The stress singular exponents and corresponding eigenvectors are the solution of the eigenvalue problem leading from the prescribed notch boundary and compatibility conditions. Generally, there is more than one solution of this eigenvalue problem and consequently the stress intensity factors. The potential direction of crack initiation is determined from the local minimum of the mean value of the strain energy density factor in both materials. Following the assumption of the same mechanism of the rupture in the case of the crack and the notch, an expression for the critical values of the stress intensity factor can be obtained.
Klíčová slova česky
Orthotropic bi-material notch, composite materials, strain energy density factor, stability criterion
Klíčová slova anglicky
Orthotropic bi-material notch, composite materials, strain energy density factor, stability criterion
Rok RIV
2010
Vydáno
21.06.2010
Nakladatel
National Taiwan University of Science and Technology
Místo
Taipei
ISBN
978-986-02-3909-6
Kniha
Multiscaling of Synthetic and Natural Systems with Self-Adaptive Capability
Strany od–do
149–152
Počet stran
4
BIBTEX
@inproceedings{BUT35323,
author="Tomáš {Profant} and Jan {Klusák} and Michal {Kotoul},
title="CONDITIONS FOR CRACK INITIATION IN AN ORTHOTROPIC BI-MATERIAL CORNER DETERMINED BY MEANS OF THE STRAIN ENERGY DENSITY FACTOR",
booktitle="Multiscaling of Synthetic and Natural Systems with Self-Adaptive Capability",
year="2010",
month="June",
pages="149--152",
publisher="National Taiwan University of Science and Technology",
address="Taipei",
isbn="978-986-02-3909-6"
}