WIT Press


Stress Accuracy Of Parabolic Finite Elements In Contact Problems Analysis

Price

Free (open access)

Paper DOI

10.2495/CON990221

Volume

24

Pages

7

Published

1999

Size

545 kb

Author(s)

Miran Ulbin, Matjaz Sraml, Dusan Gabriel & Jifi Plesek

Abstract

The paper presents the stress distribution errors discovered while analysing contact problems with parabolic finite elements. Usage of parabolic instead of linear finite elements in finite element analysis usually results in more accurate stresses. On the other hand usage of parabolic finite elements would result in jagged stress distribution. The jagged stress distribution occurs using either Penalty function method or Lagrange multiplier method. Stress distribution errors were discovered also in analysis where Gauss integration point positions were used for contact analysis. Series of contact problem

Keywords