ORBi: Jeunechamps Pierre-Paul - Identification of elastoplastic model parameters in large deformation problems using gamma methods

Reference : Identification of elastoplastic model parameters in large deformation problems using gam...


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Materials science & engineering
	To cite this reference:	http://hdl.handle.net/2268/18174

Title :	Identification of elastoplastic model parameters in large deformation problems using gamma methods
Language :	English
Author, co-author :	Jeunechamps, Pierre-Paul [Université de Liège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire >]
	Walmag, J. [> >]
	Mathonet, V. [> >]
	Delhez, Eric [Université de Liège > Département d'aérospatiale et mécanique > Mathématiques générales >]
	Habraken, Anne [Université de Liège > Département ArGEnCo > Département ArGEnCo >]
	Ponthot, Jean-Philippe [Université de Liège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire >]
	Tossings, Patricia [Université de Liège > Département d'aérospatiale et mécanique > Mathématiques générales >]
	Duysinx, Pierre [Université de Liège > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres >]
Publication date :	2003
Main document title :	Proceedings of the 5th World Congress on Structural and Multidisciplinary Optimization
Audience :	International
Event name :	5th World Congress on Structural and Multidisciplinary Optimization
Event date :	19 au 23 mai 2003
Event place (city) :	Lido di jesolo
Event country :	Italy
Keywords :	[en] parameter identification ; optimization algorithms ; large deformation simulations
	[fr] elasto-plastic models
Abstract :	[en] This paper reports on preliminary results of parameter identification problems in finite element non-linear analyses such as metal forming simulations. Two approaches are compared. The first one is the classic Levenberg-Marquardt algorithm. The second one is a trust-region algorithm based on a quadratic model. The two algorithms are compared on two cases, one of them being an actuel experiment.
Permalink :	http://hdl.handle.net/2268/18174

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