A Robust Algorithm for Normal and Tangential Beam-to-Beam Contact
2016 (English)Report (Refereed)
In this paper, we present a robust formulation for 3D beam-to-beam contact based on a penalty method. Although restricted to penalty methods, the present formulation is very stable in non-linear problems solved in implicit time integration. Apart from its simplicity in implementation, we demonstrate that compared to the previously presented methods, it requires fewer iterations in problems involving large deformations. In addition, the present formulation allows a larger range of values for the penalty stiffness without compromising the convergence rate, which often favors the accuracy of the solution. Finally, the present method allows the use of arbitrary shape functions for the beam elements, which was difficult in the previous formulations due to the immensely increased complexity of the implementation upon an increased order of the elements. In addition, we propose a robust method to handle frictional sliding contact with the present formulation.
Place, publisher, year, edition, pages
2016. , 31 p.
Structures, Finite Element methods, Contact
Other Mechanical Engineering
Research subject Solid Mechanics
IdentifiersURN: urn:nbn:se:kth:diva-183580ISBN: 978-91-7595-903-0OAI: oai:DiVA.org:kth-183580DiVA: diva2:912666
QC 201603222016-03-172016-03-172016-04-19Bibliographically approved