Thermo-elastic topology optimization using a multi-scale approach

2018 ◽  
Author(s):  
Lidy Marcela Anaya Jaimes
Keyword(s):  
Topology Optimization ◽  
Multi Scale

Spectral decomposition for graded multi-scale topology optimization

2021 ◽  
Vol 377 ◽  
pp. 113670 ◽  
Author(s):  
Tej Kumar ◽  
Saketh Sridhara ◽  
Bhagyashree Prabhune ◽  
Krishnan Suresh
Keyword(s):  
Topology Optimization ◽  
Spectral Decomposition ◽  
Multi Scale

scholarly journals A well connected, locally-oriented and efficient multi-scale topology optimization (EMTO) strategy

2021 ◽  
Author(s):  
Edouard Duriez ◽  
Joseph Morlier ◽  
Miguel Charlotte ◽  
Catherine Azzaro-Pantel
Keyword(s):  
Topology Optimization ◽  
Multi Scale

Topology optimization design of multi-scale structures with alterable microstructural length-width ratios

2019 ◽  
Vol 230 ◽  
pp. 111454 ◽  
Author(s):  
Quhao Li ◽  
Rui Xu ◽  
Ji Liu ◽  
Shutian Liu ◽  
Song Zhang
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Multi Scale ◽  
Length Width ◽  
Scale Structures

Topology optimization of micro-structure for composites applying a decoupling multi-scale analysis

2013 ◽  
Vol 49 (4) ◽  
pp. 595-608 ◽  
Author(s):  
Junji Kato ◽  
Daishun Yachi ◽  
Kenjiro Terada ◽  
Takashi Kyoya
Keyword(s):  
Topology Optimization ◽  
Scale Analysis ◽  
Micro Structure ◽  
Multi Scale ◽  
Multi Scale Analysis

A Multi-Scale Topology Optimization Approach for Optimal Macro-Layout and Local Grading of TPMS-Based Lattices

2021 ◽  
Author(s):  
Niclas Strömberg
Keyword(s):  
Topology Optimization ◽  
Additive Manufacturing ◽  
Local Density ◽  
Bulk Material ◽  
Transversely Isotropic ◽  
Benchmark Problems ◽  
Optimization Approach ◽  
Lattice Structures ◽  
Efficient Design ◽  
Multi Scale

Abstract The use of lattice structures in design for additive manufacturing has quickly emerged as a popular and efficient design alternative for creating innovative multifunctional lightweight solutions. In particular, the family of triply periodic minimal surfaces (TPMS) studied in detail by Schoen for generating frame-or shell-based lattice structures seems extra promising. In this paper a multi-scale topology optimization approach for optimal macro-layout and local grading of TPMS-based lattice structures is presented. The approach is formulated using two different density fields, one for identifying the macro-layout and another one for setting the local grading of the TPMS-based lattice. The macro density variable is governed by the standard SIMP formulation, but the local one defines the orthotropic elasticity of the element following material interpolation laws derived by numerical homogenization. Such laws are derived for frame- and shell-based Gyroid, G-prime and Schwarz-D lattices using transversely isotropic elasticity for the bulk material. A nice feature of the approach is that the lower and upper additive manufacturing limits on the local density of the TMPS-based lattices are included properly. The performance of the approach is excellent, and this is demonstrated by solving several three-dimensional benchmark problems, e.g., the optimal macro-layout and local grading of Schwarz-D lattice for the established GE-bracket is identified using the presented approach.

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