Sectional elements

Details Sectional elements Sectional elements

C - Chemistry, Metallurgy

21

D

C21D 7/10 (2006.01) C21D 7/02 (2006.01) B21B 1/08 (2006.01) C21D 9/04 (2006.01)

Patent

CA 2248429

The application describes the development of beneficial residual stresses, or removal of undesirable residual stresses, in sectional elements. A stress is applied such as to generate a poisson strain in the relevant area. The stress is then released, and the poisson strain leaves its own residual stress. The use of the poisson approach results in the initial stress being particular straightforward to apply, particularly to a rail section or I-beam.

Création de contraintes résiduelles avantageuses, ou suppression de contraintes résiduelles non souhaitables, dans des éléments profilés. On applique une contrainte de manière à générer une déformation selon la loi de Poisson dans la zone appropriée. On relâche ensuite la contrainte, et la déformation de Poisson laisse sa propre contrainte résiduelle. L'utilisation de l'approche suivant la loi de Poisson permet d'appliquer la contrainte initiale de façon particulièrement simple, spécialement à un profilé en I.

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