Published in Comput. Methods Appl. Mech. Engrg., Vol. 134 (1-2), pp. 135-161, 1996
doi: 10.1016/0045-7825(96)01032-8


A new technique for predicting structural instability points using the finite element method is presented. The approach is based on the estimation of the critical displacement pattern by writing an approximation of the tangent stiffness singularity condition at the instability point. The critical load is subsequently computed by using a secant load-displacement relationship. Details of this procedure are given together with explicit forms of the secant stiffness matrix for finite element analysis of solids and trusses. The accuracy and effectiveness of the method are clearly shown in a number of examples of two- and three-dimensional bar structures.

The PDF file did not load properly or your web browser does not support viewing PDF files. Download directly to your device: Download PDF document
Back to Top

Document information

Published on 22/11/18
Submitted on 22/11/18

DOI: 10.1016/0045-7825(96)01032-8
Licence: CC BY-NC-SA license

Document Score


Times cited: 14
Views 9
Recommendations 0

Share this document

claim authorship

Are you one of the authors of this document?