Shear deformation effect in second-order analysis of composite frames subjected in variable axial loading by BEM

Sapountzakis, EJ; Mokos, VG

dc.contributor.author	Sapountzakis, EJ	en
dc.contributor.author	Mokos, VG	en
dc.date.accessioned	2014-03-01T01:25:09Z
dc.date.available	2014-03-01T01:25:09Z
dc.date.issued	2006	en
dc.identifier.issn	19302983	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17558
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-33846866977&partnerID=40&md5=2c9c7d8336c9f1787097145d72132ddf	en
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-77951853025&partnerID=40&md5=c87fdce6908c14b66732fdc308a5f28c	en
dc.subject	Beam	en
dc.subject	Boundary element method	en
dc.subject	Second order analysis	en
dc.subject	Shear center	en
dc.subject	Shear deformation coefficients	en
dc.subject	Transverse shear stresses	en
dc.subject.other	Boundary element method	en
dc.subject.other	Boundary value problems	en
dc.subject.other	Composite beams and girders	en
dc.subject.other	Composite structures	en
dc.subject.other	Deflection (structures)	en
dc.subject.other	Poisson ratio	en
dc.subject.other	Shear deformation	en
dc.subject.other	Shear stress	en
dc.subject.other	Stress concentration	en
dc.subject.other	Structural loads	en
dc.subject.other	Axial displacement	en
dc.subject.other	Axial loading	en
dc.subject.other	Second order analysis	en
dc.subject.other	Stress function	en
dc.subject.other	Structural frames	en
dc.title	Shear deformation effect in second-order analysis of composite frames subjected in variable axial loading by BEM	en
heal.type	journalArticle	en
heal.publicationDate	2006	en
heal.abstract	In this paper a boundary element method is developed for the second-order analysis of frames consisting of composite beams of arbitrary constant cross section, taking into account shear deformation effect. The composite beam consists of materials in contact, each of which can surround a finite number of inclusions. The materials have different elasticity and shear moduli with same Poisson's ratio and are firmly bonded together. Each beam is subjected in an arbitrarily concentrated or distributed variable axial loading, while the shear loading is applied at the shear center of the cross section, avoiding in this way the induction of a twisting moment. To account for shear deformations, the concept of shear deformation coefficients is used. Three boundary value problems are formulated with respect to the beam deflection, the axial displacement and to a stress function and solved employing a pure BEM approach, that is only boundary discretization is used. The evaluation of the shear deformation coefficients is accomplished from the aforementioned stress function using only boundary integration. Numerical examples with great practical interest are worked out to illustrate the efficiency, the accuracy and the range of applications of the developed method. The influence of both the shear deformation effect and the variableness of the axial loading are remarkable. Copyright © 2006 Tech Science Press.	en
heal.journalName	SDHM Structural Durability and Health Monitoring	en
dc.identifier.volume	2	en
dc.identifier.issue	4	en
dc.identifier.spage	207	en
dc.identifier.epage	223	en