TERMIUM Plus®

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ECARTEMENT CRITIQUE [1 record]

Record 1 1997-10-27

English

Subject field(s)
  • Strength of Materials
  • Metallurgy - General
DEF

On a KIC specimen, the opening displacement of the notch surfaces at the notch and in the direction perpendicular to the plane of the notch and the crack.

OBS

The displacement at the tip is called the crack tip opening displacement (CTOD); at the mouth, it is called the crack mouth opening displacement (CMOD).

PHR

crack opening displacement test.

French

Domaine(s)
  • Résistance des matériaux
  • Métallurgie générale
CONT

Lorsqu’une éprouvette contenant une entaille mécanique est sollicitée en flexion, on observe au fond de l’entaille un écartement progressif des faces de l’entaille avant que celle-ci n’amorce la rupture. Le concept de C.O.D. admet que la quantité dont s’écartent les faces d’une fissure aigue, avant que celle-ci ne commence à se propager, est une propriété fondamentale du matériau à épaisseur, température et vitesse de déformation constantes. (Techn. Ing. 8.5052).

PHR

essai de détermination de l'écartement critique à fond de fissure.

Spanish

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