Reference : Contributions to handle maximum size constraints in density-based topology optimization
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Mechanical engineering
http://hdl.handle.net/2268/218187
Contributions to handle maximum size constraints in density-based topology optimization
English
Fernandez Sanchez, Eduardo Felipe mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres >]
Collet, Maxime mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres >]
Bauduin, Simon mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres >]
Lemaire, Etienne mailto []
Duysinx, Pierre mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres >]
5-Jun-2017
Advances in Structural and Multidisciplinary Optimization
Fiebig, Sierk
Bletzinger, Kai-Uwe
Maute, Kurt
Schumacher, Axel
Vietor, Thomas
Springer International Publishing
1054-1068
Yes
Yes
International
978-3-319-67988-4
Cham
Switzerland
12th World Congress on Structural and Multidisciplinary Optimization
5-06-2017 to 9-06-2017
Technical University of Braunschweig
Braunschweig
Germany
[en] Maximum size ; Minimum gap ; Length scale control ; SIMP
[en] The maximum size formulation in topology optimization restricts the amount of material within a test region in each point in the design domain, leading to a highly constrained problem. In this work the local constraints are aggregated into a single one by p-mean and p-norm functions, classically used for stress constraints. Moreover, a new test region is investigated which is a ring instead of the classical circle around the element. These developments were implemented for compliance minimization with the MBB beam test case. Results indicate that p-mean performs better in the maximum size field than p-norm, because it underestimates the most violated constraint. This gives some relaxation to the problem that allows stiffer connections. Similar effect has been observed for the ring-shaped region which reduces the amount of holes that are introduced in the structure, specially in the connection of solid members. In addition, it is shown that the maximum size formulation allows the definition of the minimum gap between solid members which gives designers more control over the geometry. The developments have been illustrated and validated with compliance minimization tests of 2D-domains.
This work was supported by the AERO+ project funded by the Plan Marchal and the Wallon Region of Belgium
Aero+
Researchers
http://hdl.handle.net/2268/218187
10.1007/978-3-319-67988-4_80

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
wcsmo12_paper_template.pdfAuthor preprint2.02 MBRequest copy

Additional material(s):

File Commentary Size Access
Restricted access
WCSMO_PPT.pdf3.57 MBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.