August 27, 2023 at 5:49 pmClaudine AdelsonSubscriber
I have created a beam model that consists of cocentric beams that are in frictional contact with each other. The beam-beam detection setting is "Internal Pipe Contact" and the pinball radius is set to be slightly larger than the outer tube inner diameter. There is considerable clearance between the beams.
When I use the contact tool to make sure that all of my contacts are properly set up, I see that the gap and geometric gap calculated is not at all what it should be.
The outer beam has a CTUBE cross section. Originally my inner beam had a user defined cross section. To test out the contact tool I changed it to a circular section(CSOLID) with an outer diamteter that envelopes the original section. The geometric gap is still not correct.
I think what I am doing is straightforward and I do not understand what I could be missing. Could this be a bug in the system? FYI, the geometry was created in Spaceclaim.
August 28, 2023 at 11:23 amSampat KumarAnsys Employee
Hi Claudine ,
Will you please upload the screenshot of the model and contact status so that we can verify the contact staus result?
August 28, 2023 at 12:44 pm
August 30, 2023 at 9:25 amSampat KumarAnsys Employee
Will you please check the offset value that you have provided for the beam or not? You should provide the offset value to the beam as equal to the radius of the beam and select the option "Add offset value and ramped effect". You can find this in the “geometric modification tab” of the contact settings.
August 30, 2023 at 9:55 amClaudine AdelsonSubscriber
The interface treatment was set to "Add Offset, Ramped Effect" but the offset was set to 0. I must set it to the radius of the inner beam or that of the outer beam? Can you please explain why I must apply this offset?
I thought the point of this offset is to maintain a gap between the parts when needed. I would like contact to be achieved once the gap is closed.
- You must be logged in to reply to this topic.
Boost Ansys Fluent Simulations with AWS
Computational Fluid Dynamics (CFD) helps engineers design products in which the flow of fluid components is a significant challenge. These different use cases often require large complex models to solve on a traditional workstation. Click here to join this event to learn how to leverage Ansys Fluids on the cloud, thanks to Ansys Gateway powered by AWS.
Earth Rescue – An Ansys Online Series
The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.
Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.
- Solver Pivot Warning in Beam Element Model
- Saving & sharing of Working project files in .wbpz format
- Understanding Force Convergence Solution Output
- User manual
- An Unknown error occurred during solution. Check the Solver Output…..
- What is the difference between bonded contact region and fixed joint
- The solver engine was unable to converge on a solution for the nonlinear problem as constrained.
- whether have the difference between using contact and target bodies
- Defining rigid body and contact
- Colors and Mesh Display
© 2023 Copyright ANSYS, Inc. All rights reserved.