Comparison of convergence with respect to nodal point density along the meridian of a shell of revolution

This is Fig. 2 from the paper, "Computerized analysis of shells - governing equations" by David Bushnell, Computers & Structures, Vol. 18, pp 471 – 536, 1984.

This slide shows a comparison of convergence of a finite element method with a finite difference energy method (the method used in BOSOR4/BIGBOSOR4) for an open hemispherical shell "pinched" by a pressure that varies circumferentially as cosine(2*theta)

(originally from the paper: D. Bushnell, Finite-difference energy models versus finite element models: two variational approaches in one computer program", Numerical and Computer Methods in Structural Mechanics (Edited by S. J. Fenves, N. Perrone, A. R. Robinson and W. C. Schnobrich), pp. 291-336. Academic Press, New York,1973).

Page 23 / 36