Publication result detail

A Stability Criterion of an Orthotropic Bi-Material Notch Based on the Strain Energy Density

HRSTKA, M.; PROFANT, T.; KLUSÁK, J.; ŠEVEČEK, O.; KOTOUL, M.

Original Title

A Stability Criterion of an Orthotropic Bi-Material Notch Based on the Strain Energy Density

English Title

A Stability Criterion of an Orthotropic Bi-Material Notch Based on the Strain Energy Density

Type

Paper in proceedings (conference paper)

Original Abstract

A bi-material notch or a crack terminating at the bi-material interface composed of two orthotropic materials is considered. The stress and displacement fields are expressed using the Lekhnitskii-Eshelby-Stroh formalism for plane elasticity and as the result of an application of the psi-integral method. Knowledge of the basic stress concentrator characteristics such as stress singularity exponent and corresponding regular and auxiliary eigenvectors allows the psi-integral method allows one to evaluate the generalized stress intensity factor of the studied stress concentrator. The achieved results are used for the next analysis such as assessment of the potential direction of the crack initiation and for notch stability criteria assessment as an extension of standard crack fracture mechanics.

English abstract

A bi-material notch or a crack terminating at the bi-material interface composed of two orthotropic materials is considered. The stress and displacement fields are expressed using the Lekhnitskii-Eshelby-Stroh formalism for plane elasticity and as the result of an application of the psi-integral method. Knowledge of the basic stress concentrator characteristics such as stress singularity exponent and corresponding regular and auxiliary eigenvectors allows the psi-integral method allows one to evaluate the generalized stress intensity factor of the studied stress concentrator. The achieved results are used for the next analysis such as assessment of the potential direction of the crack initiation and for notch stability criteria assessment as an extension of standard crack fracture mechanics.

Keywords

fracture mechanics, bi-material notch, stability criteria, singular stress concentrator, stress intensity factor, psi-integral

Key words in English

fracture mechanics, bi-material notch, stability criteria, singular stress concentrator, stress intensity factor, psi-integral

Authors

HRSTKA, M.; PROFANT, T.; KLUSÁK, J.; ŠEVEČEK, O.; KOTOUL, M.

RIV year

2015

Released

12.05.2014

Publisher

BUT

Location

Svratka

ISBN

978-80-214-4871-1

Book

Engineering Mechanics 2014

Edition

1

Pages from

232

Pages to

235

Pages count

4

BibTex

@inproceedings{BUT109042,
  author="Miroslav {Hrstka} and Tomáš {Profant} and Jan {Klusák} and Oldřich {Ševeček} and Michal {Kotoul}",
  title="A Stability Criterion of an Orthotropic Bi-Material Notch Based on the Strain Energy Density",
  booktitle="Engineering Mechanics 2014",
  year="2014",
  series="1",
  number="2014",
  pages="232--235",
  publisher="BUT",
  address="Svratka",
  isbn="978-80-214-4871-1"
}