The Earthquake Engineering Online Archive

Finite Element Formulations for Large Displacement and Large Strain Analysis

Bathe, Klaus-Jürgen; Ramm, Ekkehard; Wilson, Edward L.

UCB/SESM-1973/14, Dept. of Civil Engineering, University of California, Berkeley, 1973-09-01, 76 pages (500/C23/73/14)

The aim of this report is a consistent summary, comparison, and evaluation of the two formulations which are used in the general purpose nonlinear static and dynamic analysis program NONSAP. The general formulations include large displacements, large strains, material nonlinearities and nonconservative forces. Numerical solution of the continuum mechanics equations is achieved in NONSAP using isoparametric finite element discretization. The specific matrices which need to be calculated in the formulations are discussed.

Available online: http://nisee.berkeley.edu/documents/SEMM/SEMM-73-14.pdf (1 MB)