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Titre du document / Document title

Studies on elastic coupling parameters of fracture modes in orthotropic materials

Auteur(s) / Author(s)

KRISHNA MURTY A. V. (1) ; NAGAMANI A. (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Department of Aerospace Engineering, Indian Institute of Science, Bangalore-560 012, INDE

Résumé / Abstract

The characterisation of cracks is usually done using the well known three basic fracture modes, namely opening, shearing and tearing modes. In isotropic materials these modes are uncoupled and provide a convenient way to define the fracture parameters. It is well known that these fracture modes are coupled in anisotropic materials. In the case of orthotropic materials also, coupling exists between the fracture modes, unless the crack plane coincides with one of the axes of orthotropy. The strength of coupling depends upon the orientation of the axes of orthotropy with respect to the crack plane and so the energy release rate components associated with each of the modes vary with crack orientation. The variation, of these energy release rate components with the crack orientation with respect to orthotropic axes, is analyzed in this paper. Results indicate that in addition to the orthotropic planes there exist other planes with reference to which fracture modes are uncoupled.

Revue / Journal Title

International journal of fracture    ISSN  0376-9429   CODEN IJFRAP 

Source / Source

1998, vol. 94, no3, pp. 285-297 (13 ref.)

Langue / Language

Anglais

Editeur / Publisher

Springer, Heidelberg, ALLEMAGNE  (1973) (Revue)

Mots-clés anglais / English Keywords

Rupture

;

Fracture mode

;

Opening

;

Tearing

;

Shearing

;

Coupling constant

;

Energy relaxation

;

Crack tip

;

Finite element method

;

Crack closure effect

;

Crack

;

Kinking

;

Orthotropic material

;

Mots-clés français / French Keywords

Rupture

;

Mode rupture

;

Ouverture

;

Déchirement

;

Cisaillage

;

Constante couplage

;

Relaxation énergie

;

Extrémité fissure

;

Méthode élément fini

;

Effet fermeture fissure

;

Fissure

;

Coudure

;

Matériau orthotrope

;

Mots-clés espagnols / Spanish Keywords

Ruptura

;

Modo ruptura

;

Abertura

;

Desgarramiento

;

Cizalladura

;

Constante acoplamiento

;

Relajación energía

;

Extremidad fisura

;

Método elemento finito

;

Efecto ciere fisura

;

Fisura

;

Torsión

;

Material ortotropo

;

Localisation / Location

INIST-CNRS, Cote INIST : 12246, 35400008807563.0060

Nº notice refdoc (ud4) : 1949218



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