A deformation mechanism based material model for topology optimization of laminated composite plates and shells

Luo, Q; Tong, L

A deformation mechanism based material model for topology optimization of laminated composite plates and shells

Luo, Q

Tong, L

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Composite Structures, 2017, 159, pp. 246-256
Issue Date:: 2017-01-01

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Field	Value	Language
dc.contributor.author	Luo, Q https://orcid.org/0000-0001-5727-9290
dc.contributor.author	Tong, L
dc.date.accessioned	2020-06-02T01:00:19Z
dc.date.available	2020-06-02T01:00:19Z
dc.date.issued	2017-01-01
dc.identifier.citation	Composite Structures, 2017, 159, pp. 246-256
dc.identifier.issn	0263-8223
dc.identifier.issn	1879-1085
dc.identifier.uri	http://hdl.handle.net/10453/141033
dc.description.abstract	© 2016 Elsevier Ltd This paper presents a novel deformation mechanism based material model for topology optimization of laminated plates and shells considering large displacements. Discussed firstly are the one-node hinges in optimum designs of plate and shell structures and the numerical issues caused by void elements in geometrical nonlinear analysis. To circumvent these two problems, we propose a new material model in which different penalties are applied to different strain energy terms related to extensional, shear, bending and extensional-bending coupling deformation mechanisms and void elements are removed in nonlinear finite element analysis. An efficient algorithm is developed by using the present material model and the moving iso-surface threshold method. Numerical results are presented for isotropic and composite plates and shells and compared with those available in the literature to validate the present material model.
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Composite Structures
dc.relation.isbasedon	10.1016/j.compstruct.2016.09.056
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	09 Engineering
dc.subject.classification	Materials
dc.title	A deformation mechanism based material model for topology optimization of laminated composite plates and shells
dc.type	Journal Article
utslib.citation.volume	159
utslib.for	09 Engineering
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
utslib.copyright.status	closed_access	*
dc.date.updated	2020-06-02T01:00:14Z
pubs.publication-status	Published
pubs.volume	159
utslib.start-page	246

Abstract:

© 2016 Elsevier Ltd This paper presents a novel deformation mechanism based material model for topology optimization of laminated plates and shells considering large displacements. Discussed firstly are the one-node hinges in optimum designs of plate and shell structures and the numerical issues caused by void elements in geometrical nonlinear analysis. To circumvent these two problems, we propose a new material model in which different penalties are applied to different strain energy terms related to extensional, shear, bending and extensional-bending coupling deformation mechanisms and void elements are removed in nonlinear finite element analysis. An efficient algorithm is developed by using the present material model and the moving iso-surface threshold method. Numerical results are presented for isotropic and composite plates and shells and compared with those available in the literature to validate the present material model.

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http://hdl.handle.net/10453/141033