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Titre du document / Document title

Modelling of constitutive equations to describe hot deformation of 99.9% pure aluminium

Auteur(s) / Author(s)

NARAYANA MURTY S. V. S. (1) ; NAGESWARA RAO B. (2) ;

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

(1) Materials and Metallurgy Group at the Vikram Sarabhai Space Centre, Trivandrum 695 022, INDE
(2) Structural Engineering Group at the Vikram Sarabhai Space Centre, Trivandrum 695 022, INDE

Résumé / Abstract

Constitutive equations which relate the flow stress to the strain, strain rate, and temperature are useful in metal forming problems and more attractive than experimental data to designers. These equations may be valid only for the range of parameters where actual measurements were made and be inadequate for extrapolation since it is impossible to generalise the validity of these equations for every material. An interpolation scheme (cubic spline fit) used in this study is more satisfactory than the existing constitutive relations used to describe the hot deformation of 99.9% pure aluminium.

Revue / Journal Title

Materials science and technology    ISSN  0267-0836   CODEN MSCTEP 

Source / Source

1999, vol. 15, no5, pp. 599-600 (9 ref.)

Langue / Language

Anglais

Editeur / Publisher

Maney, London, ROYAUME-UNI  (1985) (Revue)

Mots-clés anglais / English Keywords

Plasticity

;

Modelling

;

Flow stress

;

Plastic flow

;

Hot deformation

;

Strain rate

;

Constitutive equation

;

Dissipation

;

Aluminium

;

Theoretical study

;

Mots-clés français / French Keywords

Plasticité

;

Modélisation

;

Contrainte écoulement

;

Ecoulement plastique

;

Déformation à chaud

;

Vitesse déformation

;

Equation constitutive

;

Dissipation

;

Aluminium

;

Etude théorique

;

Mots-clés espagnols / Spanish Keywords

Deformación en caliente

;

Ecuación constitutiva

;

Localisation / Location

INIST-CNRS, Cote INIST : 20742, 35400008484058.0190

Nº notice refdoc (ud4) : 1791753



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