scholarly journals Uncertainty quantification for dynamics of geometrically nonlinear structures coupled with internal acoustic fluids in presence of sloshing and capillarity

2020 ◽  
Vol 94 ◽  
pp. 102966
Author(s):  
Q. Akkaoui ◽  
E. Capiez-Lernout ◽  
C. Soize ◽  
R. Ohayon
Keyword(s):  
Uncertainty Quantification ◽  
Geometrically Nonlinear ◽  
Nonlinear Structures

scholarly journals Shape preserving design of geometrically nonlinear structures using topology optimization

2019 ◽  
Vol 59 (4) ◽  
pp. 1033-1051 ◽  
Author(s):  
Yu Li ◽  
Jihong Zhu ◽  
Fengwen Wang ◽  
Weihong Zhang ◽  
Ole Sigmund
Keyword(s):  
Topology Optimization ◽  
Geometrically Nonlinear ◽  
Nonlinear Structures ◽  
Shape Preserving

Isogeometric Shape Design Optimization of Geometrically Nonlinear Structures#

2013 ◽  
Vol 41 (3) ◽  
pp. 337-358 ◽  
Author(s):  
Bonyong Koo ◽  
Seung-Hyun Ha ◽  
Hyun-Seok Kim ◽  
Seonho Cho
Keyword(s):  
Design Optimization ◽  
Shape Design ◽  
Geometrically Nonlinear ◽  
Nonlinear Structures ◽  
Shape Design Optimization

scholarly journals On tracing bifurcation equilibrium paths of geometrically nonlinear structures.

1987 ◽  
pp. 37-43
Author(s):  
Wibisono HARTONO ◽  
Fumio NISHINO ◽  
Okitsugu FUJIWARA ◽  
Pisidhi KARASUDHI
Keyword(s):  
Geometrically Nonlinear ◽  
Nonlinear Structures

scholarly journals Stiffness optimization of geometrically nonlinear structures and the level set based solution

2016 ◽  
Vol 7 ◽  
pp. A3 ◽  
Author(s):  
Qi Xia ◽  
Tielin Shi
Keyword(s):  
Topology Optimization ◽  
Level Set ◽  
Optimization Problem ◽  
Two Dimensions ◽  
Geometrically Nonlinear ◽  
Nonlinear Structures ◽  
Element Analysis ◽  
Topology Optimization Problem ◽  
Stiffness Optimization ◽  
Ks Function

Load-normalized strain energy increments between consecutive load steps are aggregated through the Kreisselmeier-Steinhauser (KS) function, and the KS function is proposed as a stiffness criterion of geometrically nonlinear structures. A topology optimization problem is defined to minimize the KS function together with the perimeter of structure and a volume constraint. The finite element analysis is done by remeshing, and artificial weak material is not used. The topology optimization problem is solved by using the level set method. Several numerical examples in two dimensions are provided. Other criteria of stiffness, i.e., the end compliance and the complementary work, are compared.

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