教程5.13g加密所屬

1、SECTION 10SOL 600TABLE OF CONTENTSPageMSC.Nastran Implicit Nonlinear(SOL 600) Analysis10-7Overview Of NonLinear Analysis Using MSC.Nastran SOL 60010-8MSC.Nastran SOL 600 Overview10-9What Is MSC.Nastran SOL 600?10-10Nonlinear Capabilities In MSC.Nastran10-11What Is MSC.Marc?10-12What Is MSC.Marc? Sum

2、mary10-15What Is MSC.Nastran SOL 60010-16What Is MSC.Patran?10-17MSC.Patran Is A Pre- & Post-Processor10-19MSC.Nastran SOL 600 Is Open Architecture10-20What Is MSC.Nastran SOL 600?10-21Why Should I Use MSC.Nastran SOL 600?10-22How Does MSC.Nastran SOL 600 Work?10-24TABLE OF CONTENTSPageFeatures And

3、Capabilities10-28Summary of MSC.Nastran SOL 600 Nonlinear Analysis Capabilities10-29Non-Linear Capabilities In MSC.Nastrain SOL 60010-30Geometric Non-Linearities10-31Geometric Non-Linearities - Finite Deformation10-32Geometric Nonlinearity Follower Forces10-33Geometric Nonlinearity Updated Lagrange1

4、0-34MSC.Nastran SOL 600 Materials10-35MSC.Nastran SOL 600 Plasticity Models10-36SOL 600 Hyperelasitic Models10-37Nonlinear Material Models10-38Boundary Condition Non-Linearity10-39Rigid & Deformable Bodies10-41MSC.Nastran SOL 600 Contact10-42TABLE OF CONTENTSPageBoundary Condition Non-Linearity10-44

5、Example Analysis Of A Rubber Boot10-46MSC.Nastran SOL 600 Features10-47Features Matrix Solver Options10-48Features Distributed Memory Parallel10-49Parallel Processing: Distributed Memory Parallel Method10-50Features Distributed Memory Parallel Method10-51Features Advanced Element Technology10-53Feat

6、ures Conclusion10-54Summary of MSC.Nastran SOL 600 Nonlinear Analysis Capabilities10-55When To Use SOL 600 VS 106/12910-56Future Capabilities10-57Enhancements Planned10-58Future Capabilities User- Subroutines10-59Future Capabilities Thermal And Coupled Analysis10-60TABLE OF CONTENTSPageFuture Capabi

7、lities Adaptive Global Remeshing10-61More Info On MSC.Nastran SOL 600 Features10-62To Learn More MSC.Nastran SOL 600 Documentation10-63MSC.Nastran SOL 600 Is Easy To Learn10-64Learn Through On-Line Example Problems10-65Learn Through On-Line Example Problems10-66MSC Client Support10-67Nonlinear Summa

8、ry10-68Conclusion10-69MSC.NASTRAN IMPLICIT NONLINEAR (SOL 600) ANALYSISNonlinearAnalysis CapabilitiesFor 3D Contact andHighly Nonlinear ProblemsOVERVIEW OF NONLINEAR ANALYSIS USING MSC.NASTRAN SOL 600OVERVIEWWHAT IS MSC.NASTRAN SOL 600WHO SHOULD USE MSC.NASTRAN SOL 600MSC.NASTRAN, MSC.MARC AND MSC.P

9、ATRAN SUMMARY OF MSC.NASTRAN SOL 600 NONLINEAR ANALYSIS CAPABILITIESMSC.NASTRAN SOL 600 FEATURESSUMMARY AND CONCLUSIONSMSC.NASTRAN SOL600 OVERVIEWMSC.Nastran SOL 600 = MSC.MARC ALGORITHMS + MSC.NASTRAN INTERFACE What is MSC.Nastran SOL600?PowerfulGeneral PurposeRobustUser Friendly Features and Capab

10、ilities:ContactGeometric and Material NonlinearAdded value: Adaptive Re-meshing and DDMConclusionsWHAT IS MSC.NASTRAN SOL 600?Integrated Package: MSC.Nastran Interface MSC.Marc Algorithms MSC.Patran GUIAccess to most MSC.Marc CapabilitiesAccess to all MSC.Marc Structural / Thermal / Coupled Analysis

11、 CapabilitiesEasy to UseIntuitivePowerfulMakes nonlinear finite element analysis EASY!NONLINEAR CAPABILITIES IN MSC.NASTRAN MSC.Nastran Advanced Nonlinear SOL600:Provides FEA capability for the analysis of 3D contact and highly nonlinear problems. Combines the worlds most advanced nonlinear finite e

12、lement technology with the worlds most widely used finite element code, MSC.Nastran WHAT IS MSC.MARC?WHAT IS MSC.MARC?First commercially available, general-purpose, non-linear, FE code - used in industry for over 30 yearsParallel-processing on multiple platforms Coupled-thermal structural analysisUs

13、er-subroutines to create new material models, apply new boundary conditionsParticularly powerful for highly nonlinear problemsRigid-Deformable and Deformable-Deformable ContactAnalytic or Discrete Rigid Contact Surfaces with Velocity, Force/Moment, or Displacement ControlGlued, Stick-Slip or Continu

14、ous Friction ModelsElastic, Plastic, Hyper-elastic, Creep and Visco-elastic Material ModelsAmple Library of Built in Material Models Composite, Damping and Failure MaterialsLarge Element Library0,1,2 and 3-D Elements may be CombinedUser Control on Integration MethodsAdvanced Solution and Modeling Fe

15、aturesUser SubroutinesGlobal and Local Adaptive Re-meshingParallel Processing using Domain position - Manual or Automatic Sub-division of the ModelLarge DisplacementsContact ResolutionBucklingNon-Linear Material(Hyper-elastic rubber in this example)WHAT IS MSC.MARC?WHAT IS MSC.MARC ? - SUMMARYMSC.MA

16、RC is a general-purpose, non-linear FEA code. It has been used extensively for the last 3 decades in various types of industriesMSC.Marc - DDM is a completely parallelized finite element process Based on MSC.Marcs nonlinear algorithms, Nastran SOL 600 is a very powerful tool for solving large and co

17、mplex highly nonlinear problemsTypical Application: Rubber Boot with Hyper-elastic material and self-contactWHAT IS MSC.NASTRAN SOL600MSC.Nastran SOL600 is the nonlinear capabilities of MSC.MARC delivered in an MSC.Nastran user interfaceMSC.PATRAN provides:un-paralleled geometry integration capabili

18、ties (who else can integrate with Catia as strongly as we do?)robust automated meshing algorithms (the new parasolid geometry editing features truly expand your meshing options)feature-rich, mature pre- and post-processing capabilitiesWHAT IS MSC.PATRAN?WHAT IS MSC.PATRAN?MSC.PATRAN is a finite elem

19、ent pre- and post-processor, which has been integrated with several nonlinear analysis solvers including MSC.MARC, MSC.NASTRAN, and ABAQUS/Standard for implicit solutions; and MSC.DYTRAN and LS-DYNA3D for explicit solutions.All model definition, analysis submittal and results evaluation can be done

20、through MSC.PATRAN and driven via the graphical user interface.MSC.PATRAN on-line help facility includes documentation for all GUI forms and topics as well as help on MSC.MARC.MSC.Patran Geometric Representation of ModelMSC.PatranMSC.NastranMSC.MarcMSC.MarcMSC.FeaAbaqusANSYSMSC.DytranMSC.ThermalMSC.

21、Structural Opt.MSC.FatigueLS-DYNA3DSUPPORTED SOLVERSPre-ProcessingPost-ProcessingResults VisualizationMSC.PATRAN IS A PRE- & POST-PROCESSORPatranCAD:UGProECATIAEuclidIdeasOther:ParasolidAcisIgesStepExpressAnalysis:NastranMarcAbaqusAnsysIdeasLS-DynaSindaOther:NeutralIgesStepFatigueNew preferenceMappi

22、ng featureIn Patran 2002Provides CompleteModel ConversionMSC.NASTRAN SOL 600 IS OPEN ARCHITECTUREStrengths of MSC.Nastran SOL 600 Open Architecture Interfaces to Any CAD or Analysis ProgramMSC.Nastran SOL 600 has interfaces to all major CAD and Analysis Codes includes input deck readers for all most

23、 analysis codes. Provides “customizable” hooks for importing and exporting model information.Allows you to bring model data to anywhere/ from anywhere WHAT IS MSC.NASTRAN SOL600 ?Allows Nastran users to perform: nonlinear structural thermal * coupled thermo-structural analysis *Includes contact, lar

24、ge deflection, rotation, and strain analysis capabilities never before available in Nastran Can use input decks from the many thousands of existing MSC.Nastran models. Provides solutions for simple to complex engineering problems including multi-body contact and advanced elastomeric (rubber) materia

25、l models * Note: Starred capabilities (on any page) may not be in first releaseWHY SHOULD I USE MSC.NASTRAN SOL600 ?Allows Companies to Use a Single Model Format (BDF)Single Input Format Allows:Common Model for All Analysis NeedsElimination of Model Re-creation EffortReduced Time-to-MarketIncreased

26、EfficiencyFurther value to FEA simulationAllows Re-use of Thousands of Existing Models That Cost Millions to Create$ NASTRAN input file created by MSC.Nastran input file$ Direct Text Input for File Management Section$ Nonlinear II AnalysisSOLMARC 600 EXEMARC PATH=3$ Direct Text Input for Executive C

27、ontrolCENDSEALL = ALLSUPER = ALLTITLE = MSC.Nastran job created12-Oct-01 at 09:38:33ECHO = NONE$ Direct Text Input for Global Case Control DataBCONTACT = ALLSUBCASE 1$ Subcase name : Default SUBTITLE=Default NLPARM = 1 BCONTACT = 1 SPC = 2 LOAD = 2 DISPLACEMENT(SORT1,REAL)=ALL SPCFORCES(SORT1,REAL)=

28、ALL STRESS(SORT1,REAL,VONMISES,BILIN)=ALLBEGIN BULKPARAM POST 0PARAM AUTOSPC NOPARAM LGDISP 1 PS,-1PARAM PRTMAXIM YESNLPARM 1 10 AUTO 5 25$ Direct Text Input for Bulk Data$ Elements and Element Properties for region : shellPSHELL 1 1 .25 1 1$ Pset: shell will be imported as: pshell.1CQUAD4 1 1 1 2 1

29、3 12CQUAD4 2 1 2 3 14 13WHY SHOULD I USE MSC.NASTRAN SOL600 ? (Cont.)Brings the Following to MSC.Nastran:ContactLarge Deformation and RotationLarge StrainAdvance Nonlinear Materials:Plasticity for Polymers and MetalsHyper-elastic for ElastomersGaskets for Engine BlocksBrings Powerful, Mature, Robust

30、 Nonlinear Technology to the MSC.Nastran Community HOW DOES MSC.NASTRAN SOL600 WORK ?MSC.Nastran Look and feel:Input a standard BDF Read by Nastran IFPRuns Marc “Under the Hood”Results Read back to Nastran database via ToolkitStandard Output from NastranNew Nastran text input:Executive Command: SOL6

31、00, NLSTATICNew Case Control Command for 3D contactNew Bulk Data Entries for 3D contactNew Bulk Data Entry for gasket material$ NASTRAN input file created by MSC.Nastran input file$ Direct Text Input for File Management Section$ Advanced Nonlinear AnalysisSOL 600, NLSTATIC$ Direct Text Input for Exe

32、cutive ControlCENDSEALL = ALLSUPER = ALLTITLE = MSC.Nastran job created12-Feb-03 atECHO = NONE$ Direct Text Input for Global Case Control DataBCONTACT = ALLSUBCASE 1$ Subcase name : Default SUBTITLE=Default NLPARM = 1 BCONTACT = 1 SPC = 2 LOAD = 2 DISPLACEMENT(SORT1,REAL)=ALL SPCFORCES(SORT1,REAL)=A

33、LL STRESS(SORT1,REAL,VONMISES,BILIN)=ALLBEGIN BULKPARAM POST 0PARAM AUTOSPC NOPARAM LGDISP 1 PS,-1PARAM PRTMAXIM YESNLPARM 1 10 AUTO 5 25$ Direct Text Input for Bulk Data$ Elements and Element Properties for region : shellPSHELL 1 1 .25 1 1$ Pset: shell will be imported as: pshell.1CQUAD4 1 1 1 2 13

34、 12CQUAD4 2 1 2 3 14 13HOW DOES MSC.NASTRAN SOL600 WORK ?Nastran-Marc Translator:Start Nastran, read the Nastran input fileGenerate a Marc input file and run Marc in the backgroundMarc run-time error messages piped to .f06Nastran deletes intermediate filesNeeds a Marc and a Nastran executable (both

35、will be included on the Nastran CD)Future version will eliminate separate Marc input and runNastran Input FileNastran IFPNas-MarcTranslatorSpawn MarcRunNastran ResultsDatabaseNastran .f06 FileMarc .t16 FileNastran .xdb FileNastran .op2 FileMSC.Nastran SOL600 Runs MSC.Marc as a Background ProcessVers

36、ion 2004: Two ExecutablesMarc Files: jobname.marc.xxxVersion 2005: Single ExecutableVersion 2004 gives users as much (next page) or as little control of MSC.Marc run as they desire:Input File May be EditedJob SubmittalLicense UsageOutput File FormatJob Messages can be consolidated in .f06 fileMarc f

37、iles can be automatically removedHOW DOES MSC.NASTRAN SOL600 WORK ?HOW DOES MSC.NASTRAN SOL600 WORK ?MSC.Nastran SOL600 is the nonlinear capabilities of MSC.MARC delivered in an MSC.Nastran user interfaceMSC.PATRAN provides:un-paralleled geometry integration capabilities (who else can integrate with

38、 Catia as strongly as we do?)robust automated meshing algorithms (the new parasolid geometry editing features truly expand your meshing options)feature-rich, mature pre- and post-processing capabilitiesFEATURES AND CAPABILITIESSupports the following Structural Capabilities:ContactNonlinear Materials

39、 :Elastic - PlasticHyper-elasticCreep and Visco-elasticCompositeLarge Deformation Large StrainPatran Preference for SOL600 capabilities identical to Marc PreferenceTreloars Experimental DataSUMMARY OF MSC.NASTRAN SOL600 NONLINEAR ANALYSIS CAPABILITIESThe following Analysis Solutions are supported wi

40、th MSC.NASTRAN SOL600 (more detail on these in Chapter 2) Linear Static AnalysisNonlinear Static AnalysisGeometric NonlinearityMaterial NonlinearityContact NonlinearityExample: Rubber (Hyperelastic Material)NON-LINEAR CAPABILITIES IN MSC.NASTRAN SOL600Materially Non-linear ModelsGeometric Non-linear

41、itysBoundary Condition Non-linearitys (Contact)All Non-linear Behaviors Can be Combined Example Application: Ball JointAxi-symmetric model of ball-joint assemblyGEOMETRIC NON-LINEARITIESLarge Displacement and RotationsLarge Strain AnalysesBuckling of StructuresPost-buckling behaviorAxially LoadingCr

42、itical ModeGEOMETRIC NONLINEARITY - FINITE DEFORMATIONFinite DeformationLarge Deflection, Rotation and Strain:Large Deformation and Rotation of RBESLarge (Finite) Strain With Choice of Strain DefinitionsFinite Strain PlasticityRobust and User-Friendly Adaptive Load Incrementation Total and Updated L

43、agrange ProceduresChoice of Solvers Including Iterative and MSC.Nastrans Fast SparseDistributed loads are taken into account by means of equivalent nodal loads; changes in direction and area can be taken into account using the MSC.Marc parameter option FOLLOW FORWhere on MSC.Patran?The pressure stay

44、s normal to the deformed shape thus changes direction, in turn also producing a change in the reaction forces and moments.GEOMETRIC NONLINEARITY - FOLLOWER FORCESUpdated Lagrange is especially useful for beam and shell structures with large rotations and for large strain plasticity problems; activat

45、ed using the UPDATE parameter optionGEOMETRIC NONLINEARITY - UPDATED LAGRANGEIsotropic2-D and 3-D Orthotropic 2-D and 3-D Anisotropic Laminated and 3D Composites, Gaskets for Engine BlocksMaterial properties can be temperature dependent e.g. Youngs ModulusPoisson Ratio Coefficient of Thermal Expansi

46、onSpecific Heat Thermal Conductivity And moreMSC.NASTRAN SOL600 MATERIALSMSC.NASTRAN SOL600 PLASTICITY MODELSPerfectly Plastic and Rigid PlasticElastic Plastic with Hardening or SofteningPlastic - Hardening Laws:IsotropicKinematicCombined and othersPlastic - Yielding:With a dependence of the yield s

47、tress on strain rateVon Mises and Drucker-PragerLinear and Parabolic Mohr-CoulombVarious Oak Ridge National Laboratory models and others Hyper-elasticIncluding Graphical Feedback on Experimental Data FittingLarge strain for elastic materials (rubber) using;Neo-HookeanMooney-RivlinOgdenGentArruda-Boy

48、ceJamus-Green-Simpson modelsLarge strain, elastic analysis of compressible foamsSOL600 HYPERELASITIC MODELSNonlinear Material Models Creep Behavior for materials where, for a constant stress state, strain increases with timeRelaxation where stress decreases with time at constant deformationVisco-ela

49、stic Behavior for elastic materials that relax and dissipate energy under transient loadingsFailure Hill, Hoffman, Tsai-Wu, Maximum Stress or StrainDamping Using Mass or Stiffness Matrix, or Numerical Multipliers - can be used togetherNONLINEAR MATERIAL MODELSBOUNDARY CONDITION NON-LINEARITYContactD

50、eveloped in Marc in late 80sAutomatic detection of contact 2D and 3D contact Finds widespread use in areas like Manufacturing Simulations for sheet metal forming, deep drawing, mounting seals and other process simulations, bio- medical simulations and moreBOUNDARY CONDITION NON-LINEARITYContactAutom

51、atic Re-meshing during contact Friction modelsStick-slip modelColoumb modelShear Friction for rollingRIGID & DEFORMABLE BODIESAnalytic or Discrete Rigid Contact Surfaces with Velocity, Force/Moment, or Displacement ControlGlued, Stick-Slip or Continuous Friction ModelsMSC.NASTRAN SOL600 CONTACTConta

52、ct CapabilitiesBrings Advanced Contact Capabilities to MSC.Nastran:Easy to Use Multi-Body Capability2-D and Full 3-D ContactSupports Rigid-Deformable Contact Position, Velocity or Load Controlled Rigid BodiesRigid Geometry Defined Via NURBS Discrete or Analytical Definition DeformableStructureContac

53、t stress(including friction)CalculatedContact areaMSC.NASTRAN SOL600 CONTACTContact Capabilities Include Deformable-Deformable Contact With:Initial Interference FitStress Free Initial Mesh AdjustmentSingle or Double Sided Contact Detection Force or StressBased SeparationMultiple Friction ModelsGlued

54、 ContactAutomatic or User Defined Contact Tolerance Distance (CTD)Bias on CTDBOUNDARY CONDITION NON-LINEARITY Multi-Body ContactVery Easy to Set-UpAutomatic detection of contact surfaces 2D and 3D contact Finds widespread use in areas like: Manufacturing Simulations for sheet metal forming, deep dra

55、wing, mounting seals and other process simulations, bio- medical simulations and moreTry setting this up with contact pair contact BOUNDARY CONDITION NON-LINEARITYContact Capabilities:Rigid and DeformableAutomatic Re-meshing during contact Reports Interface Results Surface InteractionsContact Distan

56、ce TolBias on Distance TolQuadratic ElementsFriction models Glued ContactSeparation ForceEXAMPLE - ANALYSIS OF A RUBBER BOOTAll Non-Linearities Can Appear TogetherConstant Velocity Rubber Boot Elastomeric material model (Mooney, non-linear elastic) Large rotations and strains Multi-body and Self-con

57、tact (default) Local bucklingMSC.NASTRAN SOL 600 FEATURES MSC.NASTRAN SOL 600 Features:Structural, Thermal and Coupled Analysis (thermal and coupled in 2004)Material, Geometric and Contact Non-linearity Parallel Processing (DMP) available (in 2003)Experimental Data fitting for elastomers (in 2003)Us

58、er Defined Subroutines (2004)Global Re-meshing (2004)FEATURES - MATRIX SOLVER OPTIONSMatrix Solution Methods (more on this later) Direct Solver Direct Sparse Iterative Solver (Conjugate Gradient) Sparse Iterative New BCS Solver (Multi-frontal solver) FEATURES DISTRIBUTED MEMORY PARALLELMSC.Nastran D

59、MPParallel ProcessingAutomatic Subdivision based on MetisManual position based on MSC.Patran GroupsNastran SOL 600 allows DMP using a single input file 1 CPU 4 CPUsPARALLEL PROCESSING: DISTRIBUTED MEMORY PARALLEL METHOD Mesh is broken up into several domains, each submitted to a different CPULinearl

60、y-Scalable Distributed Memory ParrallelMSC.Nastran SOL600 DMP often gives what is called “Super-Linear” scalability meaning the you get better than 1/# cpu performance increase. This occurs because the % of in-core solution time goes way up In a recent comparison MSC.Nastran SOL600s DMP capability w