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Simultaneous size/ material optimisation and accurate analysis of composite stiffened panels

dc.contributor.authorMONTEMURRO, Marco
IDREF: 171660978
hal.structure.identifierDipartimento di Ingegneria Meccanica e Aerospaziale [Torino] [DIMEAS]
dc.contributor.authorPAGANI, Alfonso
hal.structure.identifierDipartimento di Ingegneria Meccanica e Aerospaziale [Torino] [DIMEAS]
dc.contributor.authorFIORDILINO, Giacinto Alberto
dc.contributor.authorPAILHES, Jerome
IDREF: 067161731
hal.structure.identifierDipartimento di Ingegneria Meccanica e Aerospaziale [Torino] [DIMEAS]
dc.contributor.authorCARRERA, Erasmo
dc.date.accessioned2021-05-14T09:48:10Z
dc.date.available2021-05-14T09:48:10Z
dc.date.issued2017
dc.date.conference2017-09-04
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/77102
dc.description.abstractEnthis work deals with the problem of the least-weight design of a composite stiffened panel. The design problem is stated as a constrained non-linear programming problem (CNLPP). Optimisation constraints of different nature are considered: mechanical constraints on the admissible material properties of the laminates as well as on the global buckling load of the panel, geometrical and manufacturability constraints on the geometric design variables of both the skin and the stiffeners.To face such a problem a multi-scale two-level (MS2L) design methodology is proposed. The MS2L design method aims at optimising simultaneously both the geometrical and the material parameters for the skin and the stiffeners at each characteristic scale (meso and macro scales). The MS2L optimisation strategy relies on the one hand on the utilisation of the polar parameters (in the framework of the equivalent single layer theories) for describing the macroscopic behaviour of each laminate composing the panel (both skin and stiffeners) and on the other hand on a special hybrid algorithm (genetic algorithm + gradient-based algorithm) in order to perform the solution search for the problem at hand.In this background, the design problem is split into two different (but related) optimisation problems. At the first level (macroscopic scale) the goal is to find the optimum value of the geometric and material (i.e. the polar parameters) design variables of the panel minimising its mass and meeting (simultaneously) all the requirements provided by the technical specification (i.e. the optimisation constraints) for the problem at hand. The second-level problem focuses on the laminate mesoscopic scale (i.e. the ply-level). Here the goal is the determination of at least one stacking-sequence (for each laminate composing the panel) meeting the optimum value of both the material and geometrical design variables provided by the first-level problem.The effectiveness of the new, non-classical configurations will be verified a posteriori through a refined finite element model of the stiffened panel making use of elements with different kinematics and accuracy (in a global-local sense) in the framework of the Carrera Unified Formulation (CUF).
dc.language.isoen
dc.publisherSocietà Editrice Esculapio
dc.source.titleICCS20 - 20th International Conference on Composite Structures
dc.subject.enGlobal/local analysis
dc.subject.enCarrera Unified Formulation
dc.subject.enOptimisation
dc.subject.enBuckling
dc.subject.enComposite materials
dc.subject.enStiffened panels
dc.title.enSimultaneous size/ material optimisation and accurate analysis of composite stiffened panels
dc.typeCommunication dans un congrès avec actes
dc.subject.halMathématiques [math]/Analyse numérique [math.NA]
dc.subject.halMathématiques [math]/Optimisation et contrôle [math.OC]
dc.subject.halInformatique [cs]/Ingénierie assistée par ordinateur
dc.subject.halInformatique [cs]/Modélisation et simulation
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Génie mécanique [physics.class-ph]
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Matériaux et structures en mécanique [physics.class-ph]
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des matériaux [physics.class-ph]
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des solides [physics.class-ph]
dc.subject.halSciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des structures [physics.class-ph]
bordeaux.page203
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.countryFR
bordeaux.title.proceedingICCS20 - 20th International Conference on Composite Structures
bordeaux.conference.cityParis
bordeaux.peerReviewedoui
hal.identifierhal-01762601
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01762601v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=ICCS20%20-%2020th%20International%20Conference%20on%20Composite%20Structures&rft.date=2017&rft.spage=203&rft.epage=203&rft.au=MONTEMURRO,%20Marco&PAGANI,%20Alfonso&FIORDILINO,%20Giacinto%20Alberto&PAILHES,%20Jerome&CARRERA,%20Erasmo&rft.genre=proceeding


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