Nonlinear inelastic analysis of beams on a nonlinear foundation

Sapountzakis, EJ; Kampitsis, AE

dc.contributor.author	Sapountzakis, EJ	en
dc.contributor.author	Kampitsis, AE	en
dc.date.accessioned	2014-03-01T02:53:23Z
dc.date.available	2014-03-01T02:53:23Z
dc.date.issued	2011	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36279
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-84858387033&partnerID=40&md5=648c9d3cc6176d20d2717a008b4a4a13	en
dc.subject	Beam on nonlinear foundation	en
dc.subject	Boundary element method	en
dc.subject	Distributed plasticity	en
dc.subject	Inelastic analysis	en
dc.subject	Winkler foundation	en
dc.subject.other	Bending loading	en
dc.subject.other	Boundary element method (BEM)	en
dc.subject.other	Constitutive law	en
dc.subject.other	Cross section	en
dc.subject.other	General boundary conditions	en
dc.subject.other	Inelastic analysis	en
dc.subject.other	Iterative process	en
dc.subject.other	Iterative solutions	en
dc.subject.other	Its efficiencies	en
dc.subject.other	Numerical integrations	en
dc.subject.other	Numerical results	en
dc.subject.other	Plasticity model	en
dc.subject.other	Rate equations	en
dc.subject.other	Winkler foundations	en
dc.subject.other	Boundary element method	en
dc.subject.other	Computer aided engineering	en
dc.subject.other	Environmental engineering	en
dc.subject.other	Foundations	en
dc.subject.other	Numerical methods	en
dc.subject.other	Plasticity testing	en
dc.subject.other	Nonlinear analysis	en
dc.title	Nonlinear inelastic analysis of beams on a nonlinear foundation	en
heal.type	conferenceItem	en
heal.publicationDate	2011	en
heal.abstract	In this investigation the inelastic analysis of beams of doubly symmetric simply or multiply connected constant cross section resting on inelastic foundation is presented employing the boundary element method. The beam is subjected to arbitrarily distributed or concentrated bending loading along its length, while its edges are subjected to the most general boundary conditions. A displacement based formulation is developed and inelastic redistribution is modelled through a distributed plasticity model exploiting material constitutive laws and numerical integration over the cross sections. An incremental - iterative solution strategy is adopted to restore global equilibrium along with an efficient iterative process to integrate the inelastic rate equations. The arising boundary value problem is solved employing the boundary element method. Numerical results are worked out to illustrate the method, demonstrate its efficiency and wherever possible its accuracy. © Civil-Comp Press, 2011.	en
heal.journalName	Proceedings of the 13th International Conference on Civil, Structural and Environmental Engineering Computing	en