Geometric design of arbitrarily curved bi-stable deployable arches with discrete joint size

Gantes, CJ; Konitopoulou, E

dc.contributor.author	Gantes, CJ	en
dc.contributor.author	Konitopoulou, E	en
dc.date.accessioned	2014-03-01T01:20:34Z
dc.date.available	2014-03-01T01:20:34Z
dc.date.issued	2004	en
dc.identifier.issn	0020-7683	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15965
dc.subject	Arbitrary curvature	en
dc.subject	Deployable structures	en
dc.subject	Discrete joint size	en
dc.subject	Geometric design	en
dc.subject	Geometrically non-linear finite element analysis	en
dc.subject	Physical model	en
dc.subject	Preliminary structural design	en
dc.subject	Semi-elliptical arch	en
dc.subject	Snap-through	en
dc.subject.classification	Mechanics	en
dc.subject.other	Computational geometry	en
dc.subject.other	Curve fitting	en
dc.subject.other	Finite element method	en
dc.subject.other	Nonlinear equations	en
dc.subject.other	Stress analysis	en
dc.subject.other	Structural design	en
dc.subject.other	Arbitrary curvature	en
dc.subject.other	Deployable structures	en
dc.subject.other	Discrete joint size	en
dc.subject.other	Geometric design	en
dc.subject.other	Geometrically non-linear finite element analysis	en
dc.subject.other	Physical model	en
dc.subject.other	Preliminary structural design	en
dc.subject.other	Semi-elliptical arch	en
dc.subject.other	Snap-through	en
dc.subject.other	Joints (structural components)	en
dc.title	Geometric design of arbitrarily curved bi-stable deployable arches with discrete joint size	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.ijsolstr.2004.04.030	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.ijsolstr.2004.04.030	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	The deployable structures presented in this work are bi-stable in the sense of being self-standing and stress-free when fully closed or fully deployed, but exhibit incompatibilities between the member lengths at intermediate geometric configurations during the deployment process, which lead to the occurrence of second-order strains and stresses resulting in a snap-through phenomenon that ""locks"" the structures in their deployed configuration. Until now the geometric shapes that were possible in the deployed configuration were only flat or curved with constant curvature. This limitation is addressed in the present paper by proposing a geometric design methodology for deployable arches of arbitrary curvature, accounting also for the discrete joint size, and applying it successfully for the geometric design of a semi-elliptical arch. The arch is then modeled with finite elements, and a geometrically non-linear analysis is performed in order to verify the deployability feature. Further verification is provided by the construction of a small-scale physical model. A preliminary structural design indicates the overall feasibility of the arch for short to medium spans and light loads. © 2004 Elsevier Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	International Journal of Solids and Structures	en
dc.identifier.doi	10.1016/j.ijsolstr.2004.04.030	en
dc.identifier.isi	ISI:000223308900005	en
dc.identifier.volume	41	en
dc.identifier.issue	20	en
dc.identifier.spage	5517	en
dc.identifier.epage	5540	en