Ls-dyna 高级教程 关键字讲解-.pdf

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1、Week1NonlinearFiniteElementModelingLS-DYNAInputFormatandSimulationGeneralFEAProcessKeywordFormatLS-DYNABackgroundStructuralFormatHistoryExampleofanInputDeckCE6705CapabilitiesComputerSessionApplicationFEMAnalysisProceduresPre-process:ModelSetupS

2、olution-procedure:SolverPost-process-AnalysisDepartmentofCivilandEnvironmentalEngineeringTheGeorgeWashingtonUniversityGeneralFEAProcessGeneralFEAProcessModelDevelopment-Pre-processingPost-processing:ResultsAnalysisDiscretizeGeometry:Nodes/ElementsDefor

3、medgeometryGeometryproperties:Thickness/Cross-sectionDisplacements,velocities,accelerationsMaterialpropertiesStressandstrainLoadingconditionsReactionforcesConstraintsEnergiesBoundaryconditionsFEModelImprovementSolver-SolutionprocessingUpdateMode

4、lbasedontheanalysisresultsNumericalsolutionofequationsofmotionIterativeprocessuntilobjectivesachievedDepartmentofCivilandEnvironmentalEngineeringTheGeorgeWashingtonUniversityDepartmentofCivilandEnvironmentalEngineeringTheGeorgeWashingtonUniversity1General

5、FEAProcessBackgroundandHistoryofLS-DYNA1976ModelDevelopment-Pre-processingDYNA3DdevelopedatLawrenceLivermoreNationalLS-INGRID,FEM-BLaboratorybyJohnHallquistI-DEAS,True-Grid,EasiCrashLowvelocityimpactofheavy,solidstructures,militaryPATRAN,HyperMeshapp

6、licationsSolver-Solutionprocessing1979LS-DYNA,PamCrash,RADIOSSDYNA3DportedonCray-1NASTRAN,ANSYS,AlgorImprovedslidinginterfaceResultsAnalysisResultsAnalysis-Post-processingOrderofmagnitudefasterOrderofmagnitudefasterLS-TAURUS,LS-POST1981HyperMesh

7、Newmaterialmodels-Explosive-structure,Soil-structureImpactsofpenetrationprojectilesDepartmentofCivilandEnvironmentalEngineeringTheGeorgeWashingtonUniversityDepartmentofCivilandEnvironmentalEngineeringTheGeorgeWashingtonUniversityBackgroundandHistoryofLS-DY

8、NABackgroundandHistoryofLS-DYNA19861993Beams,Shells,RigidBodiesKeywordFormatSingleSurfaceContactSingleSurfaceContactAutomaticSingleSurfaceContactAutomaticSingleSurfaceContactSupportforMultipleCo