January 25, 2023 at 7:34 amFAQParticipant
Firstly, make sure the grid for all parts is correct before running AUTODYN. Then, carefully examine the material properties used in the AUTODYN calculation. Next, if the grid and material properties are okay, follow the instructions below: 1. If the Lagrange processor was used in your AUTODYN model and you do not want to change it to another processor, you may need to specify an erosion model for the material in the part containing the degenerate element. Erosion models are defined in the Material Modify panel. 2. If the ALE processor was used in your AUTODYN model and you don’t want to change it to another processor, you may need to change the motion constraint in the ALE part. The default motion constraint is Lagrange. The motion constraint can be changed in the Parts panel by pressing the Motions button. Specifying any motion constraint other than Lagrange will help to automatically rezone the grid. The most frequently used motion constraint is Equipotential. 3. If you don’t want to use the Lagrange processor in your AUTODYN model, you can choose to use the SPH processor, or ALE processor with Eulerian motion constraints, or Multi-Material Euler processor. SPH is a meshless processor and thus has no degenerated cells. Using the ALE processor with Eulerian motion constraints can automatically rezone the nodes in the part and thus reduce distortion of the mesh. In Multi-Material Euler processors nodes do not move, rather the material flows from one cell to another.
Introducing Ansys Electronics Desktop on Ansys Cloud
The Watch & Learn video article provides an overview of cloud computing from Electronics Desktop and details the product licenses and subscriptions to ANSYS Cloud Service that are...
How to Create a Reflector for a Center High-Mounted Stop Lamp (CHMSL)
This video article demonstrates how to create a reflector for a center high-mounted stop lamp. Optical Part design in Ansys SPEOS enables the design and validation of multiple...
Introducing the GEKO Turbulence Model in Ansys Fluent
The GEKO (GEneralized K-Omega) turbulence model offers a flexible, robust, general-purpose approach to RANS turbulence modeling. Introducing 2 videos: Part 1 provides background information on the model and a...
Postprocessing on Ansys EnSight
This video demonstrates exporting data from Fluent in EnSight Case Gold format, and it reviews the basic postprocessing capabilities of EnSight.
- The warning message is: “The maximum contact stiffness is too big. This may affect the accuracy of the results.” Why does large contact stiffness affect results accuracy?
- Contact Definitions in ANSYS Workbench Mechanical
- How to resolve “Error: Invalid Geometry”?
- After Workbench crashes, how can I recover the project from a .mechdb file?
- Model has a large number of contacts – how to reduce them?
- How to locate an element of a particular ID number in Mechanical?
- How to display the color of each body based on the material in Mechanical?
- Please explain the warning message “coefficient ratio exceeds 10e8” ?
- How to Connect Excel to Workbench
- How can I plot bodies colored by material property in Workbench?