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1. LS-PrePost Tutorials
2. LS-PrePost 4.x Framework
2.1. Right Toolbar
2.2. Bottom Toolbar
I. Geometry Tutorials
1. Bottle Modeling
1.1. Project Specifications
1.2. Build the Profile
1.2.1. Define Support Points
1.2.2. Define the Geometry
1.2.3. Complete the Profile
1.3. Build the Body
1.3.1. Extrude the Profile
1.3.2. Apply Fillets
1.3.3. Add the Neck
1.3.4. Create a Hollowed Solid
1.4. Build the Threading
1.4.1. Create the Helix Curve
1.4.2. Create the Threading
1.4.3. Remove Shapes
2. Model Repairing
2.1. Terminology
2.2. Import and Repair the Model
2.2.1. Load the Model
2.2.2. Evaluate Errors and Flaws
2.2.3. Remove the Duplicated Face
2.2.4. Extend to Fill the Gap
2.2.5. Move the Vertex and Toggle the Edge to Fill the Gap
2.2.6. Replace to Fill the Gap
2.2.7. Remove the Inner Holes
2.2.8. Remove the Outer Holes
2.2.9. Remove the Local Zigzag Shape
2.2.10. Remove Redundant Vertices
2.3. Mesh the Model
3. Model Trimming
3.1. Import and Repair the Model
3.1.1. Load the Model
3.1.2. Evaluate the Problems
3.1.3. Trim in Mutual Mode
3.1.4. Use Trim Tool
3.1.5. Stitch in Non-Manifold Mode
3.1.6. Use Edges as the Trim Tool
3.2. Mesh the Model
4. Middle Surface Model
4.1. Load the Model
4.2. Get the Middle Sheet
4.3. Get the Top and Bottom Sub Part
4.4. Shell by Angle
4.5. Mesh the Model
5. Model Simplifying
5.1. Import and Simplify the Model
5.1.1. Load the Model
5.1.2. Search and Remove Fillet Surfaces
5.1.3. The Flaw Regions
5.1.4. Manually Untrim Surfaces
5.1.5. Replace Boundaries
5.1.6. Remove Redundant Vertices
5.2. Mesh the Model
6. Surfaces from Elements
6.1. Case Study: Single Surface from Mesh
6.1.1. Open Keyword File
6.1.2. Fit Surface from Mesh
6.1.3. Select Mesh by Part
6.1.4. Preview the Surface
6.1.5. Change the Tolerance
6.1.6. Decrease the Tolerance
6.1.7. Increase the Tolerance
6.1.8. Add the Surface
6.2. Case Study: Multiple Surfaces from Mesh
6.2.1. Open Keyword File
6.2.2. Fit Surface from Mesh
6.2.3. Generate a New Surface
6.2.4. Select Elements
6.2.5. Select More Elements
6.2.6. Create the Surface
6.2.7. Get Fine Boundary Line
II. Mesh Tutorials
1. Introduction to the 2Dmesh Sketchboard
1.1. Create Vertical Line
1.2. Offset Line
1.3. Create Horizontal Line
1.4. Create Node
1.5. Create an Arc
1.6. Complete the Region Boundary
1.7. Create Lines for Center and Right Areas
1.8. Create Horizontal Line for Right Area Top
1.9. Create Arc for Center Area Top
1.10. Trim Vertical Lines
1.11. Create First Edge for Left Area
1.12. Create Second Edge for Left Area
1.13. Create Remaining Edges for Left Area
1.14. Assign Number of Elements for Each Edge of Left Area
1.15. Mesh the Left Area
1.16. Create Edges for Middle and Right Areas
1.17. Assign Number of Elements for Middle and Right Area Edges
1.18. Define Biasing for Selected Edges
1.19. Mesh Middle and Right Areas
1.20. Exit the 2Dmesh Sketchboard
2. Introduction to Element Editing
2.1. Open Existing Keyword File
2.2. Show Unreferenced Nodes
2.3. Create Node Between Existing Nodes
2.4. Identify a Group of Nodes by ID
2.5. Replace Nodes
2.6. Align Nodes
2.7. Split Elements
2.8. Delete Elements
2.9. Create Elements
2.10. Smooth Elements
2.11. Translate Elements
2.12. Reflect Elements
2.13. Merge Duplicate Nodes
3. Introduction to Curves and Surfaces
3.1. Import Geometry Data
3.2. Create Line Sweep Mesh
3.3. Create 2 Line Mesh
3.4. Create Surface
3.5. Mesh Surface
3.6. Organize Elements
3.7. Import Blade Mesh
3.8. Create Curve to Trim Blade
3.9. Trim the Blade
3.10. Delete Trimmed Elements
3.11. Copy/Rotate the Mesh to Create a Full Prop
4. Introduction to the ElGen Interface
4.1. Open Existing Keyword File
4.2. Generate Solid Elements by Shell Offset
4.3. Generate Shell Elements from Solid Faces
4.4. Turn off Head Elements
4.5. Generate Shell Elements from Solid Surface
4.6. Generate Solid Elements by Shell Drag
4.7. Generate Solid Elements Between Two Shell Layers
4.8. Delete Horizontal Shell Faces of Discs
4.9. Generate Solid Elements by Shell Offset
4.10. Clean up the Model
5. Introduction to Block Mesher
5.1. Import Surfaces Stitch Faces
5.2. Create Straight Block
5.3. Project Edges
5.4. Project Surfaces
5.5. Accept the Mesh
6. NURBS Element Creation and Refinement for Isogeometric Analysis
6.1. NURBS Element Creation
6.2. H-Refinement
6.3. P-Refinement
6.4. K-Refinement
6.5. Subdivision with Keeping Geometry
6.6. Subdivision by Fitting Geometry
6.7. How to Show Control Grid in Refinement
6.8. Merge Element Edge
III. Model Tutorials
1. Create an LS-DYNA Input Deck for a Ball Impacting a Plate
1.1. Create the Plate
1.2. Create the Ball
1.3. Define Materials
1.4. Define Section Properties
1.5. Assign Material and Section Properties
1.6. Verify Material and Section Properties
1.7. Specify Boundary Conditions
1.8. Specify Initial Velocity
1.9. Create Part Set for Contact
1.10. Define Contact
1.11. Set Termination Time
1.12. Set D3plot Frequency
1.13. Set ASCII Time History Outputs
1.14. Save the Model
2. Create an LS-DYNA Input Deck for a Simple Inflatable Airbag
2.1. Create a Circle
2.2. Mesh the Circle
2.3. Translate and Copy the Mesh
2.4. Prepare Outer Edges of Bag
2.5. Sew Outer Edges of Bag Together
2.6. Trim Hole for Inlet
2.7. Turn off Geometry
2.8. Create Cylindrical Inlet
2.9. Organize and Merge Elements
2.10. Delete part3
2.11. Define Section Properties
2.12. Define Material
2.13. Assign Section Properties and Material
2.14. Create Part Set & Import Airbag Curve
2.15. Define Airbag
2.16. Set Termination Time
2.17. Set D3plot Frequency
2.18. Set ASCII Time History Outputs & Save the Model
3. Create an LS-DYNA Input Deck for an S-Rail Impacting a Rigidwall
3.1. Import IGES Geometry
3.2. Mesh Surfaces
3.3. Define Section Properties
3.4. Define Material
3.5. Assign Section Properties and Material
3.6. Add Masses
3.7. Add Constraints
3.8. Apply Initial Velocity
3.9. Create Planar Rigidwall
3.10. Create Welds Using Master Weld File
3.11. Set D3plot Frequency
3.12. Set ASCII Time History Outputs
3.13. Set Termination Time
3.14. Save the Model
4. Creating a Composite Laminate with Dropped Layer
4.1. Load Model
4.2. Create the Plies
4.3. Applying Material to Each Ply
4.4. Optional Step: Verifying That the Material Has Been Correctly Assigned to All Plies.
4.5. Assign Thickness
4.6. Optional Step: Verifying That the Thickness Has Been Correctly Assigned to All Plies.
4.7. Set the Reference Surface
4.8. Optional Step: Verifying That the Offset Has Been Correctly Applied
4.9. Applying Fiber Directions
4.10. Optional Step: Verifying That the Directions for All Plies Have Been Correctly Applied
4.11. Save the Model
IV. Post Tutorials
1. Calculate Ooccupant Injury Criterion
1.1. Open Crash Model Results
1.2. Specify Unit System Settings
1.3. Generate HIC Plot
1.4. Plot HIC with Pre-filtering
1.5. Pre-filtering Explained
1.6. Plot CSI with Pre-filtering
2. Plot a Force vs. Displacement Curve
2.1. Plot Force vs. Time curve
2.2. Filter Force vs. Time curve
2.3. Save Force vs. Time curve
2.4. Plot Displacement vs. Time curve
2.5. Invert Displacement vs. Time curve
2.6. Save Displacement vs. Time curve
2.7. Define X-Axis for Cross Plot
2.8. Define Y-Axis for Cross Plot
2.9. Modify Chart Titles
2.10. Save Force vs. Displacement Curve as an Image
3. Explicit to Eigenvalue to Implicit Conversion
3.1. Run the Bracket Model Using LS-DYNA Explicit
3.2. Convert the Model for Eigenvalue Analysis
3.3. Run an Eigenvalue Analysis Using LS-DYNA
3.4. View Other Mode Shapes
3.5. Convert the Model for Implicit Analysis
3.6. Run an Implicit Analysis Using LS-DYNA Implicit
3.7. Step 8: Compare Stress Values Between Explicit and Implicit Runs
4. Introduction to Various Page 1 Post-Processing Tools
4.1. Load D3plots and Animate Results
4.2. Set a Reference Node Using the Follow Interface
4.3. Trace Nodel Displacements Using the Trace Interface
4.4. Add an Annotation Using the Annotation Interface
4.5. Cut a Section Plane Using the SPlane Interface
4.6. Adjust the Location of the Section Cut
4.7. Display the Ball's Velocity Using the Vector Interface
4.8. Plot the Stress Contour Using the Fcomp Interface
4.9. Adjust the Contour Legend Using the Range Interface
4.10. Mask Some Elements Using the Blank Interface
4.11. Plot Nodal Displacement vs. Time Using the History Interface
4.12. View Results Side by Side Using the Model Interface
V. Application Tutorials
1. Introduction to Dummy Positioning
1.1. Open Unoccupied Seat Model
1.2. Import Dummy Into Model
1.3. Translate Dummy to Correct H-Point
1.4. Rotate Dummy to Face Forward
1.5. Recline Dummy in Seat
1.6. Position Lower Arms
1.7. Position Lower Legs
1.8. Create Part Set for Seatbelt Contact
1.9. Create Seatbelt to Dummy Contacts
1.10. Create Dummy to Seat Contacts
1.11. Set Termination Time
1.12. Save the Model
2. Introduction to Airbag Folding
2.1. Open Coarse Mesh Airbag Model
2.2. Identify Fold Defining Nodes
2.3. Create Thin Fold Definition #1
2.4. Create Thin Fold Definitions #2-9
2.5. Preview Folds, Accept, and Save Model
2.6. Open Original Model
2.7. Create Tuck Fold Definitions #1 and #2
2.8. Create Thick Fold Definitions #3 and #4
2.9. Perform Folding and Save Model
2.10. Open Fine Mesh Airbag Model
2.11. Create Thin Fold Definition #1-6
2.12. Create Spiral Fold Definitions #7 and #8
2.13. Perform Folding and Save Model
3. Introduction to Belt Fitting
3.1. Open Body Model
3.2. Create Simple Lap Belt
3.3. Create Simple Shoulder Belt
3.4. Create Mixed Lap Belt
3.5. Create Mixed Shoulder Belt
3.6. Load Tube Model
3.7. Create Mixed Spiral Belt
3.8. Save The Model
4. Introduction to Metal Forming Interface
4.1. Tool/Blank Mesh Generation
4.1.1. Open IGES File
4.1.2. Meshing the Binder
4.1.3. Mesh the Die
4.1.4. Tool Mesh Result
4.1.5. Import IGES File for the Blank
4.1.6. Mesh the Blank
4.2. Check the Tool Mesh and Offset
4.2.1. Open the Keyword File
4.2.2. Check for Duplicate Nodes and Show Free Edges
4.2.3. Tool Mesh Normal Check
4.2.4. Reverse Tool Mesh Normals by Part
4.2.5. Align Tool Mesh Normals
4.2.6. Jacobian Check, Delete Failed
4.2.7. Jacobian Check, Contour Display
4.2.8. Offset with Advanced Option On
4.3. Multi-stage process simulation
4.3.1. Import Blank and Forming Tools
4.3.2. Rename Blank and Tools
4.3.3. Gravity, Closing, and Drawing
4.3.4. Define the Die
4.3.5. Define the Binder
4.3.6. Define the Punch
4.3.7. Define Blank and Material
4.3.8. Define the Drawbeads
4.3.9. Drawbead Force Modify
4.3.10. Process Control (Gravity)
4.3.11. Process Control (Closing)
4.3.12. Process Control (Forming)
4.3.13. Trimming and Springback
4.3.14. Import Trim Curve
4.3.15. Process Control (Trimming)
4.3.16. Process Control (Springback)
4.3.17. Tipping
4.3.18. Process Control (Tipping)
4.3.19. Flanging and Springback
4.3.19.1. Import Files
4.3.19.2. Process Control (Flanging Control)
4.3.19.3. Process Control (Flanging Post)
4.3.19.4. Process Control (Flanging Pad)
4.3.19.5. Process Control (Flanging Steels)
4.3.19.6. Process Control (Add Flanging Steels)
4.3.19.7. Create a Second Flanging Steel
4.3.19.8. Process Control (Springback)
4.3.19.9. Submit Job: LS-DYNA Input Deck Output
4.3.19.10. Running LS-DYNA In Windows
4.3.20. Multi-flanging Setup
4.3.20.1. Import Files
4.3.20.2. Setup Stage 1 (Flanging)
4.3.20.3. Define Blank and Material
4.3.20.4. Flanging Control
4.3.20.5. Flanging Post
4.3.20.6. Flanging Pad
4.3.20.7. Flanging Steel 1 Part
4.3.20.8. Add Flanging Steel 2 to 4
4.3.20.9. Submit Job: LS-DYNA Input Deck Output
4.3.20.10. Save Project File
4.3.20.11. Running LS-DYNA in Windows
4.3.21. Post Processing
4.3.21.1. Import Files
4.3.21.2. Create a Movie (.wmv)
4.3.21.3. Cut a Section Plane
4.3.21.4. Move the Cut Planes
4.3.21.5. Save Multiple Cut Sections in Keyword Format
4.3.21.6. Plot Thickness/Thinning Contour
4.3.21.7. Set Contour Range for Thickness Contour
4.3.21.8. Set Contour Range for Thinning Contour
4.3.21.9. Save a JPG for the Screen Display
4.3.21.10. Plot Thinning Distribution Along a Section
4.3.21.11. Identify Detailed Results in Value
4.3.21.12. Plot FLD
4.3.21.13. Plot In-plane Major/Minor Strain Vectors
4.3.21.14. Blank Draw-in
4.3.21.15. Plot Tool Tonnage
4.3.21.16. Plot Sheet Blank Mass Increase
5. Introduction to ALE Interface
5.1. Explosion Under Water
5.1.1. Open the ZIP File
5.1.2. Open the ALE Interface
5.1.3. Add Groups and Parts
5.1.4. Define ALE Group and Mat Parameters
5.1.5. Define Simulation Control Parameters
5.1.6. Define Advanced Control Parameters
5.1.7. Define Detonation Time
5.1.8. Define Boundary Conditions
5.1.9. Output ALE File
5.2. Initial Volume Filling
5.2.1. Open the ZIP File
5.2.2. Open the ALE Interface
5.2.3. Define Material Set of Group/Part
5.2.4. Define Simulation Control and IC/BC
5.2.5. Define Air and HE
6. Introduction to Dynfold
6.1. Load Airbag
6.2. Load Tool File and Define Tool Attaching to Airbag
6.3. Define Motion of Roller Parts
6.4. Output and Run LS-DYNA
VI. MultiSolver Tutorials
1. Introduction to ICFD Post Processor
1.1. Section Plane
1.2. ISO Surface
1.3. Stream Line