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RESEARCH PRODUCT
An extended Ritz formulation for buckling and post-buckling analysis of cracked multilayered plates
Alberto MilazzoIvano BenedettiVincenzo Gulizzisubject
PhysicsShear deformation theoryComposite numberMathematical analysisCeramics and Composite02 engineering and technologyPlate post-bucklingEdge (geometry)01 natural sciencesDomain (mathematical analysis)Finite element method010101 applied mathematics020303 mechanical engineering & transports0203 mechanical engineeringBucklingExtended Rayleigh-Ritz methodPlate bucklingCeramics and CompositesFirst-order shear deformation theory0101 mathematicsSettore ING-IND/04 - Costruzioni E Strutture AerospazialiCivil and Structural Engineeringdescription
Abstract An extended Ritz formulation for the analysis of buckling and post-buckling behaviour of cracked composite multilayered plates is presented. The formulation is based on: (i) the First-order Shear Deformation Theory to model the mechanics of the multilayered plate; (ii) the von Karman’s theory to account for geometric non-linearities ; (iii) the use of an extended set of approximating functions able to model the presence of an embedded or edge crack and to capture the crack opening fields as well as the global behaviour within a single cracked domain. The numerical results of the buckling analyses and the equilibrium paths in the post-buckling regime are compared with the results from finite elements simulations , confirming the accuracy and potential of the formulation.
year | journal | country | edition | language |
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2018-10-01 | Composite Structures |