Publication detail

ANALÝZA STABILITY TRHLINY V POVRCHOVÝCH OCHRANNÝCH VSTVÁCH NA ZÁKLADĚ OTEVŘENÍ TRHLINY NA POVRCHU TĚLESA

BAREŠ, P.

Original Title

ANALÝZA STABILITY TRHLINY V POVRCHOVÝCH OCHRANNÝCH VSTVÁCH NA ZÁKLADĚ OTEVŘENÍ TRHLINY NA POVRCHU TĚLESA

English Title

Crack stability analysis of a crack in surface layers by means of crack mouth opening displacement CMOD

Type

conference paper

Language

Czech

Original Abstract

Paper deals with stability analysis of a crack in a coating on a substrate. It is considered that the crack is perpendicularly oriented to the interface between the coating and the substrate and the crack tip lies directly on the material interface. The simple method based on crack mouth opening displacement parametr CMOD is proposed here for a critical stress calculation in the case of throught coating crack in very thin coatings. The method is then aplicated herein on the model example and the critical stresses for different material combinations of the coating and the substrate are calculated. Note that under these stresses the crack will start propagace accros the interface to the substrate. All calculations are performed by a finite element method FEM in the system ANSYS.

English abstract

Paper deals with stability analysis of a crack in a coating on a substrate. It is considered that the crack is perpendicularly oriented to the interface between the coating and the substrate and the crack tip lies directly on the material interface. The simple method based on crack mouth opening displacement parametr CMOD is proposed here for a critical stress calculation in the case of throught coating crack in very thin coatings. The method is then aplicated herein on the model example and the critical stresses for different material combinations of the coating and the substrate are calculated. Note that under these stresses the crack will start propagace accros the interface to the substrate. All calculations are performed by a finite element method FEM in the system ANSYS.

Key words in English

Crack mouth opening displacement, bimaterial interface, crack propagation

Authors

BAREŠ, P.

RIV year

2005

Released

1. 12. 2005

Publisher

Ústav fyziky materiálů AVČR, Brno

Location

Brno

ISBN

80-239-6145-4

Book

Víceúrovňový design pokrokových materiálů 2005

Pages from

207

Pages to

215

Pages count

8

BibTex

@inproceedings{BUT25159,
  author="Pavel {Bareš}",
  title="ANALÝZA STABILITY TRHLINY V POVRCHOVÝCH OCHRANNÝCH VSTVÁCH NA ZÁKLADĚ OTEVŘENÍ TRHLINY NA POVRCHU TĚLESA",
  booktitle="Víceúrovňový design pokrokových materiálů 2005",
  year="2005",
  pages="207--215",
  publisher="Ústav fyziky materiálů AVČR, Brno",
  address="Brno",
  isbn="80-239-6145-4"
}