109 Shape and Topology Optimization for Shell Structures Using Idea of Traction Method

2006 ◽  
Vol 2006.19 (0) ◽  
pp. 37-38
Author(s):  
Hiromi NOI ◽  
Daiji FUJII
Keyword(s):  
Topology Optimization ◽  
Shell Structures ◽  
Shape And Topology Optimization ◽  
Traction Method ◽  
And Topology

Combined Shape and Topology Optimization of Free Form Shells

2010 ◽  
Vol 163-167 ◽  
pp. 2356-2360
Author(s):  
Lei Wang ◽  
Qi Lin Zhang ◽  
Bin Yang
Keyword(s):  
Topology Optimization ◽  
Strain Energy ◽  
3D Model ◽  
Necessary Optimality Conditions ◽  
Shell Structures ◽  
Free Form ◽  
B Spline ◽  
Shape And Topology Optimization ◽  
And Topology ◽  
Structural Strain

With the aim of finding the optimum design that maximizes the stiffness of shell structures, an suitable approach for combined shape and topology optimization of free-form surface is presented. For numerical expression for the configuration of free form shell, NURBS (Non Uniform Rational B-Spline) is utilized. For shape optimization, the approach is employed to calculate the differential of total structural strain energy corresponding to surface height parameters. The surface height is adjusted iteratively according to its sensitivity to total structural strain energy. For topology optimization, the OC algorithms which are derived from the necessary optimality conditions are used and element connectivity is taken as design variable. The method has been implemented into a computational 3D model and example is provided to show the applicability of the present method.

An integrated approach for shape and topology optimization of shell structures

2002 ◽  
Vol 80 (5-6) ◽  
pp. 449-458 ◽  
Author(s):  
Rubén Ansola ◽  
Javier Canales ◽  
José A. Tárrago ◽  
John Rasmussen
Keyword(s):  
Topology Optimization ◽  
Integrated Approach ◽  
Shell Structures ◽  
Shape And Topology Optimization ◽  
And Topology

Simultaneous shape and topology optimization of shell structures

2013 ◽  
Vol 48 (1) ◽  
pp. 221-233 ◽  
Author(s):  
Behrooz Hassani ◽  
Seyed Mehdi Tavakkoli ◽  
Hossein Ghasemnejad
Keyword(s):  
Topology Optimization ◽  
Shell Structures ◽  
Shape And Topology Optimization ◽  
And Topology
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