Large Deflection Stability of Spherical Shells With Ring Loads

[+] Author and Article Information
J. Cagan, L. A. Taber

Department of Mechanical Engineering, University of Rochester, Rochester, NY 14627

J. Appl. Mech 53(4), 897-901 (Dec 01, 1986) (5 pages) doi:10.1115/1.3171878 History: Received October 31, 1985; Revised April 24, 1986; Online July 21, 2009


Large deflections of shallow and deep spherical shells under ring loads are studied. The axisymmetric problem is solved through a Newton-Raphson technique on discretized nonlinear shell equations. Comparison of computed load-deflection curves to experimental data from both thick and thin shells generally shows good agreement in peak loads and the type of instability. For a point load, the load increases monotonically with deflection; as the ring radius increases, transition-type (snap-through) and then local buckling occurs. In addition, the pre- and post-buckled mechanical behaviors of the shell are examined.

Copyright © 1986 by ASME
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