Mechanical APDL Basic Analysis Guide - Ansys

20.8. Reviewing Contents of Binary Files (AUX2) ................................................................................... 305
20.9. Operating on Results Files (AUX3) ................................................................................................ 305
20.10. Other File Management Commands .......................................................................................... 306
21. Memory Management and Configuration ........................................................................................ 307
21.1. ANSYS Work and Swap Space Requirements ................................................................................ 307
21.2. How ANSYS Uses its Work Space .................................................................................................. 307
21.3. How and When to Perform Memory Management ....................................................................... 308
21.3.1. Allocating Memory to ANSYS Manually ............................................................................... 309
21.3.2. Changing the Amount of ANSYS Work Space ....................................................................... 309
21.3.3. Changing Database Space From the Default ....................................................................... 310
21.4. Using the Configuration File ........................................................................................................ 312
21.5. Understanding ANSYS Memory Error Messages ........................................................................... 315
Index ........................................................................................................................................................ 317
List of Figures
1.1. Sample MPPLOT Display ......................................................................................................................... 6
1.2. Sample TBPLOT Display .......................................................................................................................... 7
1.3. Material Model Interface Initial Screen ..................................................................................................... 8
1.4. Material Model Interface Tree Structure ................................................................................................... 9
1.5. A Data Input Dialog Box .......................................................................................................................... 9
1.6. Data Input Dialog Box - Added Column ................................................................................................. 10
1.7. Data Input Dialog Box - Added Row ....................................................................................................... 11
1.8. Sample Finite Element Models .............................................................................................................. 18
2.1. Loads ................................................................................................................................................... 21
2.2. Transient Load History Curve ................................................................................................................. 23
2.3. Load Steps, Substeps, and Equilibrium Iterations .................................................................................... 24
2.4. Stepped Versus Ramped Loads .............................................................................................................. 25
2.5. Symmetry and Antisymmetry Boundary Conditions .............................................................................. 29
2.6. Examples of Boundary Conditions ......................................................................................................... 29
2.7. Scaling Temperature Constraints with DSCALE ...................................................................................... 31
2.8. Example of Beam Surface Loads ............................................................................................................ 35
2.9. Example of Surface Load Gradient ......................................................................................................... 37
2.10.Tapered Load on a Cylindrical Shell ...................................................................................................... 38
2.11. Violation of Guideline 2 (left) and Guideline 1 (right) ............................................................................ 38
2.12. BFE Load Locations ............................................................................................................................. 41
2.13. BFE Load Locations for Shell Elements ................................................................................................. 42
2.14. BFE Load Locations for Beam and Pipe Elements ................................................................................. 42
2.15.Transfers to BFK Loads to Nodes .......................................................................................................... 43
2.16. Concentrated Axisymmetric Loads ...................................................................................................... 48
2.17. Central Constraint for Solid Axisymmetric Structure ............................................................................. 48
2.18. Pressure Distribution for Load Case 1 ................................................................................................... 54
2.19. Pressue Distribution for Load Case 2 .................................................................................................... 54
2.20. Pretension Definition .......................................................................................................................... 64
2.21. Initial Meshed Structure ...................................................................................................................... 66
2.22. Pretension Section .............................................................................................................................. 67
2.23. Pretension Stress ................................................................................................................................ 68
5.1. Solution Controls Dialog Box ............................................................................................................... 107
5.2. PGR File Options ................................................................................................................................. 111
5.3. Examples of Time-Varying Loads ......................................................................................................... 115
6.1. A Typical POST1 Contour Display ......................................................................................................... 127
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ANSYS Mechanical APDL Basic Analysis Guide
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