-
-
June 6, 2023 at 1:19 pm
Stefano De Sanctis
SubscriberHello everyone, I am doing a thesis work on the problem of dislocation in hip prosthesis. I encountered a problem of in the geometry during the analysis (see photo).
I would like to achieve sliding as a result until the head separates on the acetabular cup, but instead I get only penetration, can anyone help me? maybe I am wrong in the connection conditions. I used frictionless for the contacts between head and cup and applied a force in the stem, locking with a displacement along x and z. thanks for the help.
-
June 7, 2023 at 7:56 am
Nanda Veralla
Ansys EmployeeHello stefano,
Augmented lagrange does allow some degree of penetration. I would suggest to use Normal lagrange, which usually allows zero penetration and set detection method to combined. You need to use "direct solver" when formulation is set to normal lagrange. Hope this helps.
Contact Formulation Theory (ansys.com)
Regards,
Nanda.
Guidelines for Posting on Ansys Learning Forum
How to access ANSYS help links
-
- 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.

Ansys Blog
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
-
7780
-
4508
-
2973
-
1449
-
1322
© 2023 Copyright ANSYS, Inc. All rights reserved.