Publication detail

Problematika obecných koncentrátorů na rozhraní dvou anisotropních materiálů

ŠEVEČEK, O. PROFANT, T.

Original Title

Problematika obecných koncentrátorů na rozhraní dvou anisotropních materiálů

English Title

Problem of general stress concentrators on the interface of two anisotropic materials

Type

conference paper

Language

Czech

Original Abstract

The contribution deals with a caculation of the fracture-mechanics parameters which characterizes the stress field in the vicinicity of the crack tip terminating at the interface of two different anisotropic 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 contribution deals with a caculation of the fracture-mechanics parameters which characterizes the stress field in the vicinicity of the crack tip terminating at the interface of two different anisotropic 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.

RIV year

2006

Released

30. 11. 2006

Publisher

Ústav fyziky materiálů AVČR

Location

Brno

ISBN

80-239-8271-0

Book

Víceúrovňový design pokrokových materiálů 2005

Edition number

1

Pages from

155

Pages to

162

Pages count

8

BibTex

@inproceedings{BUT24150,
  author="Oldřich {Ševeček} and Tomáš {Profant}",
  title="Problematika obecných koncentrátorů na rozhraní dvou anisotropních materiálů",
  booktitle="Víceúrovňový design pokrokových materiálů 2005",
  year="2006",
  number="1",
  pages="155--162",
  publisher="Ústav fyziky materiálů AVČR",
  address="Brno",
  isbn="80-239-8271-0"
}