What is cause of following warning message and how to overcome the same: The maximum contact stiffness is too big. This may affect the accuracy of the results. You may need to scale the force unit in the model.How do I scale the force unit.
Tagged: 18, contact, mechanical, structural-and-thermal, structural-mechanics, thermal
April 5, 2023 at 2:32 pmFAQParticipant
This is a limitation of penalty based contact. This warning occurs when normal contact stiffness (FKN) is higher than 10^16. To remove this issue we need to change the “unit system” in Mechanical. By defaults the unit of normal contact stiffness (FKN) is FORCE/LENGTH^3. If we change the (m kg N..) unit system to (mm kg N..) unit system the new FKN value will be 10^(-9) times the previous one. You may also try to change the contact algorithm.
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.
- ANSYS Mechanical: Fatigue Crack Growth Analysis using SMART Crack Growth
- Does ECAD trace mapping support more than one type of trace material (usually copper) in the same layer?
- How can I understand Beam Probe results?
- Can the contact type (bonded or frictional) affect thermal results?
- Which time integration scheme is used in transient thermal analysis and how to change the scheme?
- Why there is difference in contact status between two load steps during Bolt Pretension? LS1: Bolt is Loaded LS2: Pretension is locked
- Static Structural Analysis of a Rear Upright – Part 1
- Modeling Radiative Heat Transfer
- What is pinball radius and does mesh size effect this value?
- How to define frictional coefficient as a function of relative sliding velocity
© 2023 Copyright ANSYS, Inc. All rights reserved.