ANSYS Workbench - Simulation Structural Nonlinearities Training Manual

Inventory Number: First Edition ANSYS Release: 9.0 Published Date: February 4, 2005 Registered Trademarks: ANSYS ® is a registered trademark of SAS IP Inc. All other product names mentioned in this manual are trademarks or registered trademarks of their respective manufacturers. Disclaimer Notice: This document has been reviewed and approved in accordance with the ANSYS, Inc. Documentation Review and Approval Procedures. “This ANSYS Inc. software product (the Program) and program documentation (Documentation) are furnished by ANSYS, Inc. under an ANSYS Software License Agreement that contains provisions concerning non-disclosure, copying, length and nature of use, warranties, disclaimers and remedies, and other provisions. The Program and Documentation may be used or copied only in accordance with the terms of that License Agreement.” Copyright © 2005 SAS IP, Inc. Proprietary data. Unauthorized use, distribution, or duplication is prohibited. All Rights Reserved. Training Manual ANSYS Workbench – Simulation Structural Nonlinearities

Training Manual February 4, 2005 Inventory # TOC-3 ANSYS Workbench – Simulation Structural Nonlinearities Table of Contents 1.Introduction1-1 2.Nonlinear Structural2-1 A.Background on Linear Analysis2-3 B.Nonlinear Analysis Setup2-9 C.Metal Plasticity2-19 D.Workshop 2A – Metal Plasticity2-39 E.Solving Nonlinear Models 2-52 F.Reviewing Results 2-69 G.Workshop 2B – Bolt Pretension w/ Contact Advanced Contact3-1 A.Contact3-3 B.Contact vs Target3-18 C.Pinball Region 3-29 D.Interface Treatment 3-32 E.Workshop 3A – Bolted Joint Assembly3-37 F.Frictional Contact Options 3-53 G.Workshop 3B – Bolted Joint Assembly w/ Friction Nonlinear Diagnostics 4-1 A.Solution Information4-3 B.Monitoring the Solution 4-12 C.Newton-Raphson Residuals 4-18 D.Example Cases4-22 E.Tips on Solving the Model 4-29 F.Workshop 4 – General Troubleshooting Accessing ANSYS Options5-1 A.Named Selections and ANSYS5-3 B.Overview of Command Objects5-6 C.Transferring Models to ANSYS5-16 D.Workshop 5 – Accessing ANSYS Options5-23