【压力容器---毕设翻译用---外文文献】Postbuckling strength design of open thin-walled cylindrical.pdf

Thin-Walled Structures 31 (1998) 203–220
Postbuckling strength design of open thin-
walled cylindrical tanks under wind load
H. Schmidt*, B. Binder, H. Lange
Department of Civil Engineering, University of Essen, D-45117 Essen, Germany
Abstract
Open cylindrical steel tanks for the storage of liquids tend to be rather thin-walled because
they are primarily designed for the circumferential tensile stresses from hydrostatic internal
pressure. It is desirable to take advantage of the postbuckling strength of the thin cylindrical
wall when designing the empty tank against wind load. The theoretical external pressure carry-
ing behaviour of edge-stiffened thin-walled cantilever shells is discussed with regard to both
bifurcation and postbuckling phenomena. For experimental verification, a series of postbuck-
ling tests on cylindrical PVC and steel specimens with large radius/thickness ratio (r/t ϭ 2500)
under internal underpressure and under a “wind-like” load arrangement has been carried out.
Based on the numerical and experimental results, mendations are put forward for an
economic postbuckling strength design strategy. They pared with existing design rules
in tank codes.  1998 Elsevier Science Ltd. All rights reserved.
Keywords: Shell buckling; Shell stability; Postbuckling; Tanks; Wind load
1. Introduction
Open cylindrical steel tanks are used for permanent storage of various liquids
ranging from water to livestock slurry, or as a catch basin for emergency storage of
environmentally dangerous liquids. The tank walls are primarily designed for the
hoop stresses from hydrostatic internal pressure; no significant pressive
forces that would create a severe shell buckling case are present. As a consequence,
* Corresponding author. Tel: ϩ 49 201 183 2766; Fax: ϩ 49 201 183 2710.
0263-8231/98/$—see front matter  1998 Elsevier Science Ltd. All rights reserved.
PII: S0263-8231(98)00009-3
204 H. Schmidt et al./Thin-Walled Structures 31 (1998) 20