Publication detail

Problematika přechodu trhlin přes rozhraní dvou anisotropních materiálů.

ŠEVEČEK, O. PROFANT, T. KOTOUL, M.

Original Title

Problematika přechodu trhlin přes rozhraní dvou anisotropních materiálů.

English Title

Problem of crack transition across the interface of two anisotropic materials.

Type

conference paper

Language

Czech

Original Abstract

The work deals with a calculation of the fracture-mechanics parameters, which characterizes the stress field in the vicinicity of the crack tip terminating at the interface of two different orthotropic materials. The two main parameters - Generalized Stress Intensity Factor and T-stress in the Williams asymptotic expansion are discussed . For their computation, the two state "psi"-integral method and Continuously Distributed Dislocations technique are used. There will be also discussed possible approach how to formulate the fracture criterion for the cracks positioned very close to a bi-material interface or laying on it. Possibility of crack deflection along the interface and the propagation from the surface layer into the basic material will be taken into consideration.

English abstract

The work deals with a calculation of the fracture-mechanics parameters, which characterizes the stress field in the vicinicity of the crack tip terminating at the interface of two different orthotropic materials. The two main parameters - Generalized Stress Intensity Factor and T-stress in the Williams asymptotic expansion are discussed . For their computation, the two state "psi"-integral method and Continuously Distributed Dislocations technique are used. There will be also discussed possible approach how to formulate the fracture criterion for the cracks positioned very close to a bi-material interface or laying on it. Possibility of crack deflection along the interface and the propagation from the surface layer into the basic material will be taken into consideration.

Key words in English

generalized stress intensity factor, continuously distributed dislocations, orthotropic material

Authors

ŠEVEČEK, O.; PROFANT, T.; KOTOUL, M.

RIV year

2006

Released

6. 11. 2006

Publisher

University of West Bohemia

Location

Nečtiny

ISBN

80-7043-477-5

Book

Computational mechanics 2006

Edition number

1

Pages from

601

Pages to

608

Pages count

8

BibTex

@inproceedings{BUT24149,
  author="Oldřich {Ševeček} and Tomáš {Profant} and Michal {Kotoul}",
  title="Problematika přechodu trhlin přes rozhraní dvou anisotropních materiálů.",
  booktitle="Computational mechanics 2006",
  year="2006",
  number="1",
  pages="601--608",
  publisher="University of West Bohemia",
  address="Nečtiny",
  isbn="80-7043-477-5"
}