Nonlinear dynamic buckling of asymmetrical suspended roofs under step loading

Michaltsos, GT; Sophianopoulos, DS

dc.contributor.author	Michaltsos, GT	en
dc.contributor.author	Sophianopoulos, DS	en
dc.date.accessioned	2014-03-01T01:13:55Z
dc.date.available	2014-03-01T01:13:55Z
dc.date.issued	1998	en
dc.identifier.issn	0178-7675	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12792
dc.subject	Dynamic Response	en
dc.subject	Fixed Point	en
dc.subject	Model Simulation	en
dc.subject	Nonlinear Dynamics	en
dc.subject	Globally Asymptotically Stable	en
dc.subject	Two Degree of Freedom	en
dc.subject.classification	Mathematics, Interdisciplinary Applications	en
dc.subject.classification	Mechanics	en
dc.title	Nonlinear dynamic buckling of asymmetrical suspended roofs under step loading	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s004660050316	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s004660050316	en
heal.language	English	en
heal.publicationDate	1998	en
heal.abstract	In the present investigation, the nonlinear static as well as dynamic buckling of asymmetrical suspended roofs, acted upon by step conservative loading of infinite duration is examined in detail. This is achieved via a two-degrees-of-freedom imperfect dissipative model simulating the real roof structure. Natural and complementary equilibrium paths are determined for different characteristic values of the parameters involved, revealing a variety of equilibrium configurations. Evolution from symmetry to asymmetry, especially for high roofs, changes the static response from limit point instability to monotonically rising stable paths and increases the amplitude of horizontal displacement. For all cases considered the corresponding dynamic response is associated with point attractors, being either remote stable physical equilibria or prebuckling fixed points, simultaneously locally and globally asymptotically stable, although the dynamic buckling phenomenon has already occurred. The main feature of suspended roofs - sensitivity to horizontal vibrations - is captured by the proposed model, while eliminating the effect of suspension the model yields snap-through buckling as expected.	en
heal.publisher	SPRINGER VERLAG	en
heal.journalName	Computational Mechanics	en
dc.identifier.doi	10.1007/s004660050316	en
dc.identifier.isi	ISI:000074177700016	en
dc.identifier.volume	21	en
dc.identifier.issue	4-5	en
dc.identifier.spage	389	en
dc.identifier.epage	397	en