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Structural analysis-Design considerationChange designAlternate materialĪBOUT STAAD PROSTAADPro is the World's leading Structural Analysis and Design software component is in motion when loads are applied or time varying loadsExamplesSuspension systems of a vehicle Types Linear analysis Non linear analysis component under rest when loads are appliedExamplesHolding devices-Clamp or fixture analysisTypes Linear analysis Non linear analysisĭynamic analysisAnalysis of a structure for various loads under Dynamic condition i.e. Static analysisAnalysis of a structure for various loads under static condition i.e. Meshing-Importance & drawbacksWhy should we meshElement qualityProblems associated with meshingĪBOUT STAAD PROA comprehensive integrated FEA and design solution, including a state of the art user interface, visualization tools and integrated design codesCapable of analyzing a structure exposed to dynamic response, soil structure interaction or wind, earthquake and moving loads MeshingProcess of discritization of a structure into element and nodesInfinite no of D.O.F to Finite D.O.FTypes of discritization Natural Artificialīasic terminologies meshingAspect ratioSkewingWarp ageTypes of refinementH refinementP refinement
Problem types in FEABoundary value problem-static and steady state analysisInitial value problem-fluid flowEigen value problem-Modal analysis, vibration and natural frequencyBoundary initial value problem-forced vibration, transient and dynamic analysisįEMNodesElementsTypes of elements1D-Line element(Min 2 nodes)2D-Plane element (Area-Min 4 node)3D-Solid element (Volume-min 8 nodes) Nature of FEMForce method (Forces unknown) Strain energy method Consistent deformation method Matrix flexibility method Clayperons theorem of 3 momentsDisplacement method (Displacements unknown) Kanis method Slope deflection method Matrix stiffness method Moment distribution method FEMįEAFEA- simulate loading conditions on design & determine design response to these conditions The design is modeled using discrete elements called elements The sum of response of all elements in the model gives the response of design
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Introduction to FEM & FEAFEM-Finite element methodFEA –Finite element analysisįEMFinite element method of structural analysis was created by academic and industrial researches during 1959’s and 1960’sTheoretical approach.Examples Euler's rule, LaGrange method, Newton raphson method, Fourier series orthotropicīasic TerminologiesStructural analysisStructureBeamColumnTruss Methods of Engineering AnalysisExperimental Method Example: Prototype modelAnalytical method or Theoretical Analysis Using Mathematical Differential equationsNumerical methodFinite element method*īasic TerminologiesStructural analysisStressStrainPoisson ratioHook's lawYoung's modulusBending momentShear forceStress strain curve for various materialsLinearNonlinearIsotropic vs. “Why” to perform an AnalysisTo calculate Stress distribution Natural frequencies Displacement Critical Buckling loads.
“What” Is Analysis?Calculation of the response of structures toactions Structural Analysis And DesignProgramDeveloped byBentley Systems
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