On shakedown of elastic-plastic bodies with temperature-dependent properties - École des Ponts ParisTech Access content directly
Conference Papers Year : 2016

On shakedown of elastic-plastic bodies with temperature-dependent properties

Michaël Peigney
Connectez-vous pour contacter l'auteur

Abstract

For elastic-perfectly plastic structures under prescribed loading histories, the well-known Melan's theorem gives a sufficient condition for shakedown to occur, i.e. for the evolution to become elastic in the large-time limit. The original Melan's theorem rests on the assumption that the material properties remain constant in time, independently on the applied loading. This communication addresses the long standing issue of extending Melan's theorem to temperature-dependent (or time-dependent) elastic moduli. The main motivation is to extend the range of applications of Melan's theorem to thermomechanical loading histories with large temperature fluctuations: In such case, the variation of the elastic properties with the temperature cannot be neglected. Some recent results obtained in perfect plasticity and viscoplasticity are presented and discussed.
Fichier principal
Vignette du fichier
ECCOMAS2016.pdf (188.38 Ko) Télécharger le fichier
Origin Files produced by the author(s)
Loading...

Dates and versions

hal-01332892 , version 1 (16-06-2016)

Identifiers

  • HAL Id : hal-01332892 , version 1

Cite

Michaël Peigney. On shakedown of elastic-plastic bodies with temperature-dependent properties. VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2016), Jun 2016, Crete Island, Greece. ⟨hal-01332892⟩
96 View
287 Download

Share

Gmail Mastodon Facebook X LinkedIn More