[en] An efficient numerical method has been developed and programmed to predict springback in creep age-forming (CAF) of alummium shell components. Physically based unified creep-ageing constitutive equations determined for AA7010 at 150 degrees C are used to evaluate age-hardening and creep deformation in CAF processes. The studies are mainly concentrated on the pure bending of aluminium plates. Effects of plate thickness, single and double curvature bending, ageing time and stress relaxation features on springback are investigated. It is shown that the proposed algorithm can predict springback accurately and gives a relationship between geometrical data and springback. (c) 2006 Elsevier Ltd. All rights reserved.
Disciplines :
Mechanical engineering Physics
Author, co-author :
Jeunechamps, Pierre-Paul ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Ho, K. C.; Mechanical and Manufacturing Engineering, School of Engineering, University of Birmingham, Birmingham B15 2TT, UK
Lin, J.; Mechanical and Manufacturing Engineering, School of Engineering, University of Birmingham, Birmingham B15 2TT, UK
Ponthot, Jean-Philippe ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Dean, T. A.; Mechanical and Manufacturing Engineering, School of Engineering, University of Birmingham, Birmingham B15 2TT, UK
Language :
English
Title :
A closed form technique to predict springback in creep age-forming
Publication date :
June 2006
Journal title :
International Journal of Mechanical Sciences
ISSN :
0020-7403
Publisher :
Pergamon-Elsevier Science Ltd, Oxford, United Kingdom
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