Elastic flexural buckling analysis of composite beams of variable cross-section by BEM

Sapountzakis, EJ; Tsiatas, GC

dc.contributor.author	Sapountzakis, EJ	en
dc.contributor.author	Tsiatas, GC	en
dc.date.accessioned	2014-03-01T01:26:17Z
dc.date.available	2014-03-01T01:26:17Z
dc.date.issued	2007	en
dc.identifier.issn	0141-0296	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17977
dc.subject	Analog equation method	en
dc.subject	Boundary integral equation	en
dc.subject	Composite beam	en
dc.subject	Flexural buckling	en
dc.subject	Variable cross-section	en
dc.subject.classification	Engineering, Civil	en
dc.subject.other	Bending strength	en
dc.subject.other	Boundary element method	en
dc.subject.other	Boundary integral equations	en
dc.subject.other	Boundary value problems	en
dc.subject.other	Buckling	en
dc.subject.other	Analog equation method	en
dc.subject.other	Composite Euler-Bernoulli beams	en
dc.subject.other	Elastic flexural buckling analysis	en
dc.subject.other	Composite beams and girders	en
dc.subject.other	Bending strength	en
dc.subject.other	Boundary element method	en
dc.subject.other	Boundary integral equations	en
dc.subject.other	Boundary value problems	en
dc.subject.other	Buckling	en
dc.subject.other	Composite beams and girders	en
dc.subject.other	boundary condition	en
dc.subject.other	boundary element method	en
dc.subject.other	buckling	en
dc.subject.other	composite	en
dc.subject.other	elasticity	en
dc.subject.other	flexure	en
dc.subject.other	structural component	en
dc.title	Elastic flexural buckling analysis of composite beams of variable cross-section by BEM	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.engstruct.2006.06.010	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.engstruct.2006.06.010	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	In this paper a boundary element method is developed for the elastic flexural buckling analysis of composite Euler-Bernoulli beams of arbitrary variable cross-section. The composite beam consists of materials in contact. Each of these materials can surround a finite number of inclusions or openings. All of the cross-section's materials are firmly bonded together. Since the cross-sectional properties of the beam vary along its axis, the coefficients of the governing differential equation are variable. The beam is subjected to a compressive centrally applied load together with arbitrarily axial and transverse distributed loading, while its edges are restrained by the most general linear boundary conditions. The resulting boundary value problems are solved using the analog equation method, a BEM based method. Besides the effectiveness and accuracy of the developed method, a significant advantage is that the displacements as well as the stress resultants are computed at any cross-section of the beam using the respective integral representations as mathematical formulae. Several beams are analysed to illustrate the method and demonstrate its efficiency and wherever possible its accuracy. The influence of the boundary conditions on the buckling load is demonstrated through examples with great practical interest. The flexural buckling analysis of a homogeneous beam is treated as a special case. (c) 2006 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Engineering Structures	en
dc.identifier.doi	10.1016/j.engstruct.2006.06.010	en
dc.identifier.isi	ISI:000246189100002	en
dc.identifier.volume	29	en
dc.identifier.issue	5	en
dc.identifier.spage	675	en
dc.identifier.epage	681	en