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CTOA [2 records]

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Filter results by subject field

Alphabetical list of terms

Record 1 2006-07-11

English

Subject field(s)
  • Engineering Tests and Reliability
  • Strength of Materials
CONT

The current trend [in toughness assessment of modern steels] is to use larger full-thickness specimens that can be made to fracture in a drop-weight test, and to instrument the test machine so that quantitative measures of toughness such as absorbed energy or crack-tip opening angle (CTOA) can be measured.

CONT

... efforts are now being devoted to micro-mechanical modelling of the fracture process to predict the load at which fracture will occur and the geometry (CTOA) of the propagating crack.

Key term(s)
  • crack tip opening angle

French

Domaine(s)
  • Fiabilité, contrôle et essais (Ingénierie)
  • Résistance des matériaux
CONT

[...] on installe sur la machine d'essai [de rupture par chute d'un poids] des instruments permettant d'obtenir des mesures quantitatives de la résilience, par exemple, l'énergie absorbée ou l'angle d'ouverture de l'extrémité de la fissure (AOEF).

CONT

Les travaux portent [...] sur la modélisation micromécanique du processus de rupture afin de prévoir la charge qui causera la rupture ainsi que la géométrie (AOEF) de la fissure qui se formera.

Spanish

Save record 1

Record 2 2006-07-11

English

Subject field(s)
  • Engineering Tests and Reliability
  • Strength of Materials
CONT

Drop-weight impact testing has demonstrated the viability of a laboratory test to measure material CTOA [crack-tip opening angle] toughness. Additional work is under way to refine the measurement techniques ... and to quantify the effects of varying crack speed. The results of this research will demonstrate the viability or otherwise of the drop-weight CTOA test methodology in assessing the toughness of high-strength steels.

Key term(s)
  • drop weight CTOA test
  • drop weight crack-tip opening angle test
  • drop weight crack tip opening angle test

French

Domaine(s)
  • Fiabilité, contrôle et essais (Ingénierie)
  • Résistance des matériaux
CONT

Les essais de choc par chute d'un poids ont montré la viabilité d'un essai en laboratoire qui vise à mesurer la résilience des matériaux à l'AOEF [angle d'ouverture de l'extrémité de la fissure]. Des travaux supplémentaires sont en cours pour perfectionner les techniques de mesure [...] et quantifier les effets de la vitesse de fissuration variable. Les résultats de cette activité de recherche démontreront la viabilité ou la non-viabilité de la méthode d'essai par chute d'un poids basée sur l'AOEF pour évaluer la résilience des aciers haute résistance.

Spanish

Save record 2

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