Concurrent multi-scale design optimization of composite frame structures using the Heaviside penalization of discrete material model

2015 ◽  
Vol 32 (3) ◽  
pp. 430-441 ◽  
Author(s):  
Jun Yan ◽  
Zunyi Duan ◽  
Erik Lund ◽  
Guozhong Zhao
Keyword(s):  
Design Optimization ◽  
Material Model ◽  
Frame Structures ◽  
Multi Scale ◽  
Composite Frame ◽  
Scale Design

Multi-scale design optimization of modern offshore wind farms

2021 ◽  
Author(s):  
Davide Cazzaro ◽  
Alessio Trivella ◽  
Francesco Corman ◽  
David Pisinger
Keyword(s):  
Design Optimization ◽  
Wind Farms ◽  
Offshore Wind ◽  
Offshore Wind Farms ◽  
Multi Scale ◽  
Scale Design

Heat exchanger: from micro- to multi-scale design optimization

2007 ◽  
Vol 31 (13) ◽  
pp. 1266-1274 ◽  
Author(s):  
Lingai Luo ◽  
Yilin Fan ◽  
Daniel Tondeur
Keyword(s):  
Heat Exchanger ◽  
Design Optimization ◽  
Multi Scale ◽  
Scale Design

scholarly journals Multi-scale Method for the Crack Problem in Microstructural Materials

2010 ◽  
Vol 10 (1) ◽  
pp. 69-86 ◽  
Author(s):  
R. H. W. Hoppe ◽  
S.I. Petrova
Keyword(s):  
Finite Element ◽  
Crack Problem ◽  
Material Model ◽  
Superposition Method ◽  
The Finite Element Method ◽  
Multi Scale ◽  
Microscopic Models ◽  
Modeling Strategy ◽  
Porous Microstructures ◽  
Global And Local

AbstractThe paper deals with the numerical computation of a crack problem posed on microstructural heterogeneous materials containing multiple phases in the microstructure. The failure of such materials is a natural multi-scale effect since cracks typically nucleate in regions of defects on the microscopic scale. The modeling strategy for solving the crack problem concerns simultaneously the macroscopic and microscopic models. Our approach is based on an efficient combination of the homogenization technique and the mesh superposition method (s-version of the finite element method). The homogenized model relies on a double-scale asymptotic expansion of the displacement field. The mesh superposition method uses two independent (global and local) finite element meshes and the concept of superposing the local mesh arbitrarily on the global continuous mesh. The crack is treated by the local mesh and the homogenized material model is considered on the global mesh. Numerical experiments for problems on biomorphic microcellular ceramic templates with porous microstructures of different materials constituents are presented.

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