Article (Scientific journals)
Topology and generalized shape optimisation: why stress constraints are so important?
Duysinx, Pierre; Van Miegroet, Laurent; Lemaire, Etienne et al.
2008In International Journal for Simulation and Multidisciplinary Design Optimization, 2 (4), p. 253-258
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Keywords :
Topology optimization; stress constraints
Abstract :
[en] The paper continues along the work initiated by the authors in taking into account stress constraints in topology optimization of continuum structures. Revisiting some of their last developments in this field, the authors point out the importance of considering stress constraints as soon as the preliminary design phase, that is, to include stress constraints in the topology optimization problem in order to get the most appropriate structural lay-out. Numerical applications that can be solved using these new developments make possible to exhibit interesting results related to the specific nature of strength based structural lay out for maximum strength compared to maximum stiffness. This particular character of stress design is clearly demonstrated in two kinds of situations: once several load cases are considered and when unequal stress limits in tension and compression are involved.
Disciplines :
Mechanical engineering
Aerospace & aeronautics engineering
Author, co-author :
Duysinx, Pierre  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres
Van Miegroet, Laurent ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres
Lemaire, Etienne ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Conception géométrique assistée par ordinateur
Bruls, Olivier  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire des Systèmes Multicorps et Mécatroniques
Bruyneel, Michaël ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Département d'aérospatiale et mécanique
Language :
English
Title :
Topology and generalized shape optimisation: why stress constraints are so important?
Publication date :
December 2008
Journal title :
International Journal for Simulation and Multidisciplinary Design Optimization
eISSN :
1779-6288
Publisher :
EDP Sciences, France
Volume :
2
Issue :
4
Pages :
253-258
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 10 August 2009

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