The Earthquake Engineering Online Archive

Static and dynamic geometric and material nonlinear analysis

Bathe, Klaus-Jürgen; Ozdemir, Haluk; Wilson, Edward L.

UCB/SESM-1974/04, Dept. of Civil Engineering, University of California, Berkeley, 1974-02, 178 pages (500/C23/74/04)

The purpose of this report is to present the theory and implementation of the analysis procedures that have been tested and are currently used in the general linear and nonlinear, static and dynamic finite element analysis program NONSAP. First, the continuum mechanics formulations employed are briefly summarized. For finite element discretization, one-, two- and three-dimensional isoparametric elements have been implemented. The two- and three-dimensional elements can have varying numbers of nodes. Next, the various linear and nonlinear material models available in the program to represent elastic, hyperelastic (rubber) and hypoelastic (elastic-plastic) material behavior are presented. Finally, a selected number of sample analyses are described to show some of the current solution capabilities of the program.

Available online: http://nisee.berkeley.edu/documents/SEMM/SEMM-74-04.pdf (5 MB)