MA*V2013*Z*Z*Z*SM-MAR101-NT

Basic Nonlinear Analysis using Marc and MentatMAR101 Course Notes

June 2013

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MSC.Software Corporation reserves the right to make changes in specifications and other information contained in this document without prior notice.  The concepts, methods, and examples presented in this text are for illustrative and educational purposes only, and are not intended to be exhaustive or to apply to any particular engineering problem or design. MSC.Software Corporation assumes no liability or responsibility to any person or company for direct or indirect damages resulting from the use of any information contained herein. 

Copyright © 2013 MSC.Software Corporation.  All Rights Reserved.  This notice shall be marked on any reproduction of this documentation, in whole or in part. Any reproduction or distribution of this document, in whole or in part, without the prior written consent of MSC.Software Corporation is prohibited. 

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MAR101, Section 0, June 2013Copyright© 2013 MSC.Software Corporation

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CONTENTSSection Page

1 Course OverviewCourse Objectives 1-2Simcompanion -Where to go for Help 1-3Simcompanion – Access to Communities 1-3

2 Marc / Mentat OverviewCompany Overview 2-2MARC Overview 2-7Mentat Overview 2-20

3 Nonlinearity OverviewNonlinear Overview 3-2Geometric Nonlinearity Overview 3-10Contact Nonlinearity Overview 3-20Material Nonlinearity Overview 3-37

4 Introduction to Mentat Mentat Layout 4-5 Communicating with Mentat 4-11

Workshop 1 – CAD Import and RepairWorkshop 2A Pre-Processing Data Mentat (Deformation of Cantilever Beam)Post-processing with Mentat 4-33Workshop 2B Post-Processing Data Mentat (Linear Analysis of Cantilever Beam)

MAR101, Section 0, June 2013Copyright© 2013 MSC.Software Corporation

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5 Geometric NonlinearityGuidelines 5-18Workshop 2C – Nonlinear Analysis of a Cantilever Beam

6 Material PropertiesMaterial Types Available in Marc 6-3Workshop 3 – Plastic Deformation of Cantilever BeamWorkshop 4 – Analysis of a Rubber Seal

7 Numerical Analysis of Nonlinear ProblemsPart I: Numerical Analysis of Nonlinear Behavior 7-3Part II: Load Controls and GUI Controls 7-31

8 ContactContact Basics 8-2Contact Methods 8-20Definition of Contact Bodies 8-25Contact Detection in a Static Analysis 8-38Workshop 5 – Hertz ContactWorkshop 6 – Interference FitWorkshop 7 – Hertz Contact with FrictionWorkshop 8 – Pin Insertion and ExtractionAdditional Topics: Cyclic symmetry example contact constraints 8-88

MAR101, Section 0, June 2013Copyright© 2013 MSC.Software Corporation

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CONTENTSSection Page

9 Setting up and Running the AnalysisAnalysis Overview 9-2Monitoring the Job 9-28Workshop 9 – Buckling Analysis

10 Resolving Convergence ProblemsNonlinear analysis guidelines 10-3Information Available For Help 10-7Troubleshooting Analysis Failure 10-11Analysis Failure: Exit Numbers 10-32Workshop 10 – Contact problem with 3D geom from CAD

Appendix A MARC Applications

MAR101, Section 0, June 2013Copyright© 2013 MSC.Software Corporation

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