Tutorial: Efficient and accurate time integration of FE models with small sliding contact using 3DS software Abaqus and Simpack by Prof. Wolfgang Witteveen, Apr. 23, 2025

Tutorial: Efficient and accurate time integration of FE models with small sliding contact using 3DS software Abaqus and Simpack

Prof. Wolfgang Witteveen

University of Applied Sciences Upper Austria

April 23, 2025

Abstract:

Tribomechadynamics is very challenging in terms of simulation. A fine FE mesh is generally required for joints of arbitrary shape and details (like bores). Precise results with regard to contact and friction forces are only possible if the contact is resolved locally (e.g. node to surface). These requirements mean that transient simulations cannot be done efficiently using numerical time integration in the context of FEM. Model reduction provides an alternative. Known mode bases, such as Craig and Bampton, are extended with so-called contact modes. These trial vectors specifically extend the reduced model with flexibility in the area of the joint. This enables fast computations with fine meshes, non-linear contact and friction force laws, taking into account vibrations and rigid body dynamics. The method is implemented and available in the 3DS products Abaqus and Simpack. This presentation is a tutorial on how to use these tools. It will show how to compute the contact modes and how to perform the time integration.

Biography:

The author is professor for “Simulation in Mechanical Engineering” at the University of Applied Sciences Upper Austria. He has been working on the efficient consideration of small sliding contacts in numerical time integration for around 20 years. About 3 years ago, 3DS became aware of the technology and a development partnership was formed

Slides