ORBi: Jeunechamps Pierre-Paul - Identification of elastoplastic model in large deformation problems

Reference : Identification of elastoplastic model in large deformation problems


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Aerospace & aeronautics engineering Engineering, computing & technology : Mechanical engineering
	To cite this reference:	http://hdl.handle.net/2268/22990

Title :	Identification of elastoplastic model in large deformation problems
Language :	English
Author, co-author :	Jeunechamps, Pierre-Paul [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire >]
	Walmag, Jérôme [Université de Liège - ULg > > > Doct. sc. ingé. (aérosp. & méca. - Bologne)]
	Delhez, Eric [Université de Liège - ULg > Département d'aérospatiale et mécanique > Mathématiques générales >]
	Habraken, Anne [Université de Liège - ULg > Département ArGEnCo > Département ArGEnCo >]
	Ponthot, Jean-Philippe [Université de Liège - ULg > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire >]
	Tossings, Patricia [Université de Liège - ULg > Département d'aérospatiale et mécanique > Mathématiques générales >]
	Duysinx, Pierre [Université de Liège - ULg > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres >]
Publication date :	May-2003
Main document title :	Proceedings of the 5th World Congress of Structural and Multidisciplinary Optimization WCSMO5
Editor :	Cinquini, Carlo
On invitation :	No
Audience :	International
Event name :	5th World Congress of Structural and Multidisciplinary Optimization WCSMO5
Event date :	May 18-25, 2003
Event organizer :	C. Cinquini
Event place (city) :	Lido di Jesolo
Event country :	Italy
Keywords :	[en] Parameter Identification ; Optimization algorithms ; Large deformation simulations ; 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 actual experiment.
Permalink :	http://hdl.handle.net/2268/22990

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