An inelastic beam element with hysteretic damping

Papakonstantinou, KG; Dimizas, PC; Koumousis, VK

dc.contributor.author	Papakonstantinou, KG	en
dc.contributor.author	Dimizas, PC	en
dc.contributor.author	Koumousis, VK	en
dc.date.accessioned	2014-03-01T02:45:06Z
dc.date.available	2014-03-01T02:45:06Z
dc.date.issued	2008	en
dc.identifier.issn	1070-9622	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32153
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-48249136146&partnerID=40&md5=cb3b9d6e9d69a3e1a729c01cec5ec2d9	en
dc.subject	Beam vibrations	en
dc.subject	Bouc-Wen model	en
dc.subject	Hysteretic damping	en
dc.subject	Nonlinear system identification	en
dc.subject.classification	Acoustics	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Mechanics	en
dc.subject.other	Beams and girders	en
dc.subject.other	Boolean functions	en
dc.subject.other	Equations of motion	en
dc.subject.other	Equations of state	en
dc.subject.other	Hysteresis	en
dc.subject.other	Iron	en
dc.subject.other	Nonlinear systems	en
dc.subject.other	Parameter estimation	en
dc.subject.other	Plastics	en
dc.subject.other	Runge Kutta methods	en
dc.subject.other	Springs (components)	en
dc.subject.other	State space methods	en
dc.subject.other	Steel	en
dc.subject.other	Steel beams and girders	en
dc.subject.other	Stiffness	en
dc.subject.other	Sulfate minerals	en
dc.subject.other	Beam elements	en
dc.subject.other	Beam modeling	en
dc.subject.other	Classical theory	en
dc.subject.other	Dynamic behaviors	en
dc.subject.other	Experimental data	en
dc.subject.other	Hysteretic behavior	en
dc.subject.other	Hysteretic damping	en
dc.subject.other	Inelastic behavior	en
dc.subject.other	Model parameters	en
dc.subject.other	Non-linear system identification	en
dc.subject.other	Nonlinear springing	en
dc.subject.other	Plastic regions	en
dc.subject.other	Runge-Kutta	en
dc.subject.other	Spring elements	en
dc.subject.other	State spaces	en
dc.subject.other	Steel beams	en
dc.subject.other	Stiffness degradation	en
dc.subject.other	Damping	en
dc.title	An inelastic beam element with hysteretic damping	en
heal.type	conferenceItem	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	In this work, an inelastic beam macro-element that incorporates hysteretic damping is presented. Based on classical theory of plasticity, a Bouc-Wen type model is utilized that simulates the hysteretic behavior of an inelastic spring element. Using this model, an inelastic nonlinear beam element is formulated based on the appropriate combination of two coupled nonlinear spring elements. The equations of motion are determined and are cast in a state-space form for the vector of the end displacements, velocities and hysteretic forces. The system is solved by employing a Runge-Kutta type of algorithm. The proposed inelastic beam model is then employed to simulate the experimental dynamic behavior of steel beams. The model parameters are estimated with the aid of a nonlinear system identification algorithm using existing experimental data. The proposed element approximates the inelastic behavior of steel beams adequately within plastic regions that do not undergo substantial stiffness degradation, or other relevant phenomena. Finally, the hysteretic damping features of the model are demonstrated.	en
heal.publisher	IOS PRESS	en
heal.journalName	Shock and Vibration	en
dc.identifier.isi	ISI:000256906000007	en
dc.identifier.volume	15	en
dc.identifier.issue	3-4	en
dc.identifier.spage	273	en
dc.identifier.epage	290	en