Publication result detail

Crack Deflection from the Interface between Two Orthotropic Materials-Effect of Higher Order Terms in Asymptotic Analysis

DAMBORSKÝ, P.; ŠEVEČEK, O.; PROFANT, T.; KOTOUL, M.

Original Title

Crack Deflection from the Interface between Two Orthotropic Materials-Effect of Higher Order Terms in Asymptotic Analysis

English Title

Crack Deflection from the Interface between Two Orthotropic Materials-Effect of Higher Order Terms in Asymptotic Analysis

Type

Paper in proceedings (conference paper)

Original Abstract

The problem of crack deflection from the interface between two orthotropic materials is analyzed using the concept of Finite fracture mechanics and matched asymptotic procedure. A fracture criterion based on the energy approach is introduced for this problem. The main input for such criterion is the complex stress intensity factor calculated e.g. using the two-state integral. However for more precise predictions of the crack propagation also higher order terms of the asymptotic expansion are advisable to involve in the fracture criterion. To this end a T-stress term will be calculated and considered as the second input parameter. The matched asymptotic procedure together with FEM is used to derive the change of the potential energy induced by the incremental crack growth.

English abstract

The problem of crack deflection from the interface between two orthotropic materials is analyzed using the concept of Finite fracture mechanics and matched asymptotic procedure. A fracture criterion based on the energy approach is introduced for this problem. The main input for such criterion is the complex stress intensity factor calculated e.g. using the two-state integral. However for more precise predictions of the crack propagation also higher order terms of the asymptotic expansion are advisable to involve in the fracture criterion. To this end a T-stress term will be calculated and considered as the second input parameter. The matched asymptotic procedure together with FEM is used to derive the change of the potential energy induced by the incremental crack growth.

Keywords

Interface crack, Finite fracture mechanics, Crack kinking, Fracture criterion, T-stress

Key words in English

Interface crack, Finite fracture mechanics, Crack kinking, Fracture criterion, T-stress

Authors

DAMBORSKÝ, P.; ŠEVEČEK, O.; PROFANT, T.; KOTOUL, M.

RIV year

2015

Released

06.01.2014

Publisher

Trans Tech Publications

Location

Švýcarsko

ISBN

978-3-03785-830-1

Book

Advances in Fracture and Damage Mechanics XII

ISBN

1013-9826

Periodical

Key Engineering Materials (print)

Volume

577-578

Number

1

State

Swiss Confederation

Pages from

157

Pages to

160

Pages count

4

BibTex

@inproceedings{BUT100799,
  author="Petr {Damborský} and Oldřich {Ševeček} and Tomáš {Profant} and Michal {Kotoul}",
  title="Crack Deflection from the Interface between Two Orthotropic Materials-Effect of Higher Order Terms in Asymptotic Analysis",
  booktitle="Advances in Fracture and Damage Mechanics XII",
  year="2014",
  journal="Key Engineering Materials (print)",
  volume="577-578",
  number="1",
  pages="157--160",
  publisher="Trans Tech Publications",
  address="Švýcarsko",
  doi="10.4028/www.scientific.net/KEM.577-578.157",
  isbn="978-3-03785-830-1",
  issn="1013-9826"
}