Article (Scientific journals)
An efficient 3D implicit approach for the thermomechanical simulation of elastic–viscoplastic materials submitted to high strain rate and damage
Jeunechamps, Pierre-Paul; Ponthot, Jean-Philippe
2013In International Journal for Numerical Methods in Engineering, 94, p. 920-960
Peer Reviewed verified by ORBi
 

Files


Full Text
PPJ_2013_ijnme94.pdf
Publisher postprint (3.63 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
damage; high strain rate; implicit time integration; constitutive law integration scheme; thermo-elasto-viscoplastic material behavior;; impact
Abstract :
[en] This paper aims at presenting a general consistent numerical formulation able to take into account, in a coupled way, strain rate, thermal and damage effects on the behavior of materials submitted to quasistatic or dynamic loading conditions in a large deformation context. The main features of this algorithmic treatment are as follows: -A unified treatment for the analysis and implicit time integration of thermo-elasto-viscoplastic constitutive equations including damage that depends on the strain rate for dynamic loading conditions. This formalism enables us to use dynamic thermomechanically coupled damage laws in an implicit framework. -An implicit framework developed for time integration of the equations of motion. An efficient staggered solution procedure has been elaborated and implemented so that the inertia and heat conduction effects can be properly treated. - An operator split-based implementation, accompanied by a unified method to analytically evaluate the consistent tangent operator for the (implicit) coupled damage–thermo-elasto-viscoplastic problem. -The possibility to couple any hardening law, including rate-dependent models, with any damage model that fits into the present framework. All the developments have been considered in the framework of an implicit finite element code adapted to large strain problems. The numerical model will be illustrated by several applications issued from the impact andmetal-forming domains. All these physical phenomena have been included into an oriented object finite element code (implemented at LTAS-MN2L, University of Liège, Belgium) named Metafor.
Disciplines :
Mechanical engineering
Author, co-author :
Jeunechamps, Pierre-Paul
Ponthot, Jean-Philippe  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Language :
English
Title :
An efficient 3D implicit approach for the thermomechanical simulation of elastic–viscoplastic materials submitted to high strain rate and damage
Publication date :
2013
Journal title :
International Journal for Numerical Methods in Engineering
ISSN :
0029-5981
eISSN :
1097-0207
Publisher :
Wiley, Chichester, United Kingdom
Volume :
94
Pages :
920-960
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
IMPAMETA
Funders :
DGTRE - Région wallonne. Direction générale des Technologies, de la Recherche et de l'Énergie [BE]
Available on ORBi :
since 30 June 2014

Statistics


Number of views
71 (6 by ULiège)
Number of downloads
5 (5 by ULiège)

Scopus citations®
 
12
Scopus citations®
without self-citations
4
OpenCitations
 
10

Bibliography


Similar publications



Contact ORBi