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Studies on the Kinematics of Thin Shell Elements Based on the Absolute Nodal Coordinate Formulation

[+] Author Affiliations
Per Hyldahl, Ole Balling

Aarhus University, Aarhus, Denmark

Aki M. Mikkola

Lappeenranta University of Technology, Lappeenranta, Finland

Paper No. DETC2014-34635, pp. V006T10A034; 10 pages
doi:10.1115/DETC2014-34635
From:
  • ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 6: 10th International Conference on Multibody Systems, Nonlinear Dynamics, and Control
  • Buffalo, New York, USA, August 17–20, 2014
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-4639-1
  • Copyright © 2014 by ASME

abstract

The absolute nodal coordinate formulation (ANCF) is a finite element procedure that has been developed specifically for the dynamic analysis of large deformation problems. This study concerns compatibility problems in thin rectangular ANCF shell elements, which have been reported in a recent study revealing that these elements lead to a loss of inter-element connectivity when used to discretize non-rectangular structures. This study presents an easily implementable extension to the already used formulae that reduces the inter-element connectivity problems significantly. The new approach is based on using a set of element specific parameters that corresponds to the initial shape of the element. The ability of both the standard and the proposed methods to express curved structures are compared as well as their respective numerical performance.

Copyright © 2014 by ASME

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