Optimal design of bi- And multi-stable compliant cellular structures

Luo, Q; Tong, L

Optimal design of bi- And multi-stable compliant cellular structures

Luo, Q

Tong, L

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Publication Type:: Conference Proceeding
Citation:: Proceedings of the ASME Design Engineering Technical Conference, 2018, 5A-2018
Issue Date:: 2018-01-01

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Field	Value	Language
dc.contributor.author	Luo, Q https://orcid.org/0000-0001-5727-9290	en_US
dc.contributor.author	Tong, L	en_US
dc.date.issued	2018-01-01	en_US
dc.identifier.citation	Proceedings of the ASME Design Engineering Technical Conference, 2018, 5A-2018	en_US
dc.identifier.isbn	9780791851807	en_US
dc.identifier.uri	http://hdl.handle.net/10453/133664
dc.description.abstract	Copyright © 2018 ASME. This paper presents optimal design for nonlinear compliant cellular structures with bi- and multi-stable states via topology optimization. Based on the principle of virtual work, formulations for displacements and forces are derived and expressed in terms of stress and strain in all load steps in nonlinear finite element analysis. Optimization for compliant structures with bi-stable states is then formulated as: 1) to maximize the displacement under specified force larger than its critical one; and 2) to minimize the reaction force for the prescribed displacement larger than its critical one. Algorithms are developed using the present formulations and the moving iso-surface threshold method. Optimal design for a unit cell with bi-stable states is studied first, and then designs of multistable compliant cellular structures are discussed.	en_US
dc.relation.ispartof	Proceedings of the ASME Design Engineering Technical Conference	en_US
dc.relation.isbasedon	10.1115/DETC201885707	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Optimal design of bi- And multi-stable compliant cellular structures	en_US
dc.type	Conference Proceeding
utslib.citation.volume	5A-2018	en_US
utslib.for	0906 Electrical and Electronic 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
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US
pubs.volume	5A-2018	en_US

Abstract:

Copyright © 2018 ASME. This paper presents optimal design for nonlinear compliant cellular structures with bi- and multi-stable states via topology optimization. Based on the principle of virtual work, formulations for displacements and forces are derived and expressed in terms of stress and strain in all load steps in nonlinear finite element analysis. Optimization for compliant structures with bi-stable states is then formulated as: 1) to maximize the displacement under specified force larger than its critical one; and 2) to minimize the reaction force for the prescribed displacement larger than its critical one. Algorithms are developed using the present formulations and the moving iso-surface threshold method. Optimal design for a unit cell with bi-stable states is studied first, and then designs of multistable compliant cellular structures are discussed.

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http://hdl.handle.net/10453/133664