Dynamic multiscale topology optimization for multi-regional micro-structured cellular composites

Gao, J; Luo, Z; Li, H; Li, P; Gao, L

Dynamic multiscale topology optimization for multi-regional micro-structured cellular composites

Gao, J

Luo, Z

Li, H Li, P Gao, L

Permalink

Publication Type:: Journal Article
Citation:: Composite Structures, 2019, 211 pp. 401 - 417
Issue Date:: 2019-03-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download Accepted Manuscript VersionAdobe PDF (5.33 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Gao, J https://orcid.org/0000-0002-4760-2768	en_US
dc.contributor.author	Luo, Z https://orcid.org/0000-0002-6953-3986	en_US
dc.contributor.author	Li, H	en_US
dc.contributor.author	Li, P	en_US
dc.contributor.author	Gao, L	en_US
dc.date.available	2021-03-31T18:01:55Z
dc.date.issued	2019-03-01	en_US
dc.identifier.citation	Composite Structures, 2019, 211 pp. 401 - 417	en_US
dc.identifier.issn	0263-8223	en_US
dc.identifier.uri	http://hdl.handle.net/10453/129528
dc.description.abstract	© 2018 Elsevier Ltd In this paper, a new dynamic multiscale topology optimization method for cellular composites with multi-regional material microstructures is proposed to improve the structural performance. Firstly, a free-material distribution optimization method (FMDO) is developed to generate the overall configuration for the discrete element densities distributed within a multi-regional pattern. The macrostructure is divided into several sub regions, and each of them consists of a number of elements but with the same densities. Secondly, a dynamic topology optimization formulation is developed to perform the concurrent design of the macrostructure and material microstructures, subject to the multi-regional distributed element densities. A parametric level set method is employed to optimize the topologies of the macrostructure and material microstructures, with the effective macroscopic properties evaluated by the homogenization. In the numerical implementation, the quasi-static Ritz vector (QSRV) method is incorporated into the finite element analysis so as to reduce the computational cost in numerical analysis, and some kinematical connectors are introduced to make sure the connectivity between adjacent material microstructures. Finally, 2D and 3D numerical examples are tested to demonstrate the effectiveness of the proposed dynamic multiscale topology optimization method for the material-structural composites.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP160102491
dc.relation.ispartof	Composite Structures	en_US
dc.relation.isbasedon	10.1016/j.compstruct.2018.12.031	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Materials	en_US
dc.title	Dynamic multiscale topology optimization for multi-regional micro-structured cellular composites	en_US
dc.type	Journal Article
utslib.citation.volume	211	en_US
utslib.for	091307 Numerical Modelling and Mechanical Characterisation	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	open_access	*
pubs.publication-status	Published	en_US
pubs.volume	211	en_US

Abstract:

© 2018 Elsevier Ltd In this paper, a new dynamic multiscale topology optimization method for cellular composites with multi-regional material microstructures is proposed to improve the structural performance. Firstly, a free-material distribution optimization method (FMDO) is developed to generate the overall configuration for the discrete element densities distributed within a multi-regional pattern. The macrostructure is divided into several sub regions, and each of them consists of a number of elements but with the same densities. Secondly, a dynamic topology optimization formulation is developed to perform the concurrent design of the macrostructure and material microstructures, subject to the multi-regional distributed element densities. A parametric level set method is employed to optimize the topologies of the macrostructure and material microstructures, with the effective macroscopic properties evaluated by the homogenization. In the numerical implementation, the quasi-static Ritz vector (QSRV) method is incorporated into the finite element analysis so as to reduce the computational cost in numerical analysis, and some kinematical connectors are introduced to make sure the connectivity between adjacent material microstructures. Finally, 2D and 3D numerical examples are tested to demonstrate the effectiveness of the proposed dynamic multiscale topology optimization method for the material-structural composites.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/129528