Computational modeling of interaction between actions and action effects of fpso topside structures subject to jet fire

Katsaounis, GM; Katsourinis, D; Samuelides, MS; Founti, M; Paik, JK; Kim, BJ

dc.contributor.author	Katsaounis, GM	en
dc.contributor.author	Katsourinis, D	en
dc.contributor.author	Samuelides, MS	en
dc.contributor.author	Founti, M	en
dc.contributor.author	Paik, JK	en
dc.contributor.author	Kim, BJ	en
dc.date.accessioned	2014-03-01T02:52:37Z
dc.date.available	2014-03-01T02:52:37Z
dc.date.issued	2010	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35958
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-80053970933&partnerID=40&md5=b1888fb5db098982b9679ec7b480bfec	en
dc.subject.other	Accidental fires	en
dc.subject.other	Action effect	en
dc.subject.other	Commercial codes	en
dc.subject.other	Computational fluid dynamics simulations	en
dc.subject.other	Computational modeling	en
dc.subject.other	Constitutive relations	en
dc.subject.other	FEM models	en
dc.subject.other	Jet fire	en
dc.subject.other	LS-DYNA	en
dc.subject.other	Minimum value	en
dc.subject.other	Nonlinear finite element program	en
dc.subject.other	Pressure and temperature	en
dc.subject.other	Pressure variations	en
dc.subject.other	Shell finite elements	en
dc.subject.other	Temperature increment	en
dc.subject.other	Time history	en
dc.subject.other	Arctic engineering	en
dc.subject.other	Computational fluid dynamics	en
dc.subject.other	Finite element method	en
dc.subject.other	Offshore oil fields	en
dc.title	Computational modeling of interaction between actions and action effects of fpso topside structures subject to jet fire	en
heal.type	conferenceItem	en
heal.publicationDate	2010	en
heal.abstract	This paper presents a computational modeling of accidental fire actions on the topside structures of a floating, production, storage and offloading (FPSO) unit. According to the assumed scenario, the accident results in a jet fire, which loads the structure by temperature increments and pressures generation on their exposed surfaces. Temperature distributions were obtained by computational fluid dynamics (CFD) simulations, using the ANSYS CFX commercial code. The temperature versus time histories computed were first approximated (idealized) by smoother curves, based on fewer time-points, while retaining the maximum and minimum values. A similar procedure was also followed for the pressure variations. For the consequence (action effect) analysis the LSDYNA nonlinear finite element program was employed and the structures were modeled using shell finite elements with nonlinear (elastic-thermal plastic) constitutive relations. On the structure surfaces non coinciding grids were used for the two kinds of analyses (i.e., the CFD and FEM), in order to accommodate the diverse requirements of the different problems. The procedure of assignment the pressure and temperature loadings directly from the CFD results to the FEM model is described and representative results are given through the application of the methodology to a sample problem. © 2010 by ASME.	en
heal.journalName	Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE	en
dc.identifier.volume	2	en
dc.identifier.spage	959	en
dc.identifier.epage	966	en