Thermodynamics-based evaluation of the plastic work induced heating. Consequences on the dynamic localization conditions

P. Longère; A. Dragon

doi:doi:10.1051/dymat/2009177

All issues

Volume 2 (2009)

10.1051/dymat/2009177

Abstract

Issue		DYMAT 2009 Volume 2, 2009 DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading


Page(s)		1257 - 1262
Section		Constitutive Modeling
DOI		https://doi.org/10.1051/dymat/2009177
Published online		15 September 2009

DYMAT 2009 (2009) 1257-1262
DOI: 10.1051/dymat/2009177

Thermodynamics-based evaluation of the plastic work induced heating. Consequences on the dynamic localization conditions

P. Longère¹ and A. Dragon²

¹ Université Européenne de Bretagne, UBS-LIMATB (EA 4250), 56321 Lorient, France
² ENSMA-LMPM (UMR CNRS 6617), 86961 Futuroscope-Chasseneuil, France

Published online: 15 September 2009

Abstract
The present contribution deals with the evaluation of the plastic work induced adiabatic heating during any dynamic loading path considering a wide class of constitutive models including physics based models and phenomenological ones. Various approaches are presented as well as their consequences in terms of adiabatic shear banding onset conditions. Regarding this specific mode of dynamic failure, this work settles on the strong influence of the method retained on estimating the temperature increase. This systematic analysis provides clearly discriminating insight in the field of dynamics of materials.