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METAL FATIGUE [8 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2015-04-13

English

Subject field(s)
  • Rheology
  • Scientific Measurements and Analyses
  • Engineering Tests and Reliability
  • Strength of Materials
CONT

Repeated loading of metal to stresses lower than the ultimate strength is called fatigue loading and the fracture which results is a fatigue failure.

CONT

Fatigue failures occur because of localized hardening and embrittling of the metal specimen which results from the repeated plastic deformation caused by the applied load.

CONT

Several joints of [heavyweight drill] pipe may be placed ... in the drill stem between the drill collars and regular drill pipe to provide a gradual change in stiffness and thus reduce the chances of drill-pipe fatigue failure in this portion of the drill stem.

Key term(s)
  • fatigue-related failure
  • fatigue related failure

French

Domaine(s)
  • Rhéologie
  • Mesures et analyse (Sciences)
  • Fiabilité, contrôle et essais (Ingénierie)
  • Résistance des matériaux
CONT

Lorsqu'un métal est soumis à une contrainte qui varie périodiquement avec le temps (contrainte cyclique), la rupture peut se produire pour des valeurs de la contrainte maximale bien inférieures à la charge de rupture et même à la limite élastique du matériau. C'est la rupture par fatigue.

Key term(s)
  • rupture due à la fatigue
  • défaillance causée par la fatigue

Spanish

Save record 1

Record 2 2013-03-11

English

Subject field(s)
  • Road Construction
DEF

A concrete pavement reinforced with metal, glass, polypropylene, polyester, [or other types of fibres] to increase the strength values(flexural tensile, fatigue, impact, shear) of the concrete.

OBS

fibre-reinforced concrete pavement: term and definition proposed by the World Road Association.

Key term(s)
  • fiber-reinforced concrete pavement

French

Domaine(s)
  • Construction des voies de circulation
DEF

Revêtement en béton contenant des fibres métalliques, de verre, de polypropylène, de polyester, [ou d'un autre type] pour augmenter les résistances (à la traction par flexion, à la fatigue, au choc, au cisaillement) du béton.

OBS

revêtement en béton de fibres : terme et définition proposés par l'Association mondiale de la route.

Spanish

Save record 2

Record 3 2012-10-19

English

Subject field(s)
  • Aluminum Alloys
  • Glass Fabrics
  • Aeroindustry
CONT

Glare is a laminated material made of alternate layers of aluminium and glass fibre. The word ’Glare’ stands for Glassfibre Reinforced Aluminium. Glare was developed in co-operation with the Delft University of Technology and the Netherlands National Aerospace Laboratory(NLR).... Glare has greatly reduced susceptibility to metal fatigue and is therefore stronger than aluminium, which allows significant weight savings to be achieved.... The Glare material is bonded under high pressure and temperature in [the Glare autoclave]. Glare combines the ideal characteristics of metal and composites. The selected fibre material is glass fibre, and the metal used is aluminium. To ensure high integrity and durability of the aluminium and glass fibre layers, these are securely bonded using an epoxy resin. The resin and bonding must be able to resist the extreme operating conditions encountered in flight, such as pressure, tension and torsion forces, as well as extreme temperatures in polar and tropical regions, and must be designed for a long operational lifetime.

OBS

Glare®: a registered trademark.

Key term(s)
  • glassfiber reinforced aluminum
  • glass-fiber reinforced aluminum
  • Glare

French

Domaine(s)
  • Alliages d'aluminium
  • Verre textile
  • Constructions aéronautiques
CONT

[...] Glare [...] est un stratifié hybride élaboré à partir de couches alternées d'aluminium et de nappes unidirectionnelles de fibres de verre pré-imprégnées de résine époxyde. Ce matériau est 10% moins dense que les alliages d'aluminium et présente des tolérances à l'endommagement et en fatigue supérieures, ainsi qu'une meilleure tenue à la corrosion et une très bonne résistance aux flammes. Utilisé pour des panneaux du fuselage supérieur, le gain de masse attendu est de l'ordre de 800 kg.

OBS

Glare® : marque de commerce.

Key term(s)
  • Glare

Spanish

Save record 3

Record 4 2002-11-19

English

Subject field(s)
  • Aircraft Piloting and Navigation
  • Weapon Systems (Air Forces)
  • Aircraft Systems
CONT

The fatigue life of structural elements depends on a number of factors and a complex task should be resolved to find the optimum way for fatigue life improvement of welded structure without the increase in its metal consumption.

French

Domaine(s)
  • Pilotage et navigation aérienne
  • Systèmes d'armes (Forces aériennes)
  • Circuits des aéronefs

Spanish

Save record 4

Record 5 2002-03-13

English

Subject field(s)
  • Oil Drilling
DEF

Of drill pipe or drill collars, to part or split primarily because of metal fatigue in the pipe or because of mishandling.

French

Domaine(s)
  • Forage des puits de pétrole

Spanish

Save record 5

Record 6 1991-01-17

English

Subject field(s)
  • Tracks and Roadways (Rail Transport)
CONT

It was discovered that the critical failure was a fracture through the holes in one of the splice rails caused by metal fatigue.

French

Domaine(s)
  • Voies ferrées

Spanish

Save record 6

Record 7 1975-03-11

English

Subject field(s)
  • Types of Motor Vehicles and Bicycles
  • Strength of Materials
OBS

the limiting stress below which a metal will withstand an indefinitely large number of cycles of stress without failure by fatigue fracture.

French

Domaine(s)
  • Sortes de véhicules automobiles et de bicyclettes
  • Résistance des matériaux
OBS

les machines d'essais d'endurance permettent de réaliser des contraintes périodiques qui sont en général sinusoïdales.

Spanish

Save record 7

Record 8 1975-03-11

English

Subject field(s)
  • Types of Motor Vehicles and Bicycles
  • Strength of Materials
OBS

the limiting stress below which a metal will withstand an indefinitely large number of cycle of stress without failure by fatigue fracture.

French

Domaine(s)
  • Sortes de véhicules automobiles et de bicyclettes
  • Résistance des matériaux
OBS

si l'amplitude et le nombre de sollicitations périodiques sont suffisantes, il en résulte une rupture par fatigue.

Key term(s)
  • sollicitation périodique

Spanish

Save record 8

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