Page 239 - Marine Structural Design
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Chapter I I Ultimate Strength of Cylindrical Shells 215
11.2 Elastic Buckling of Unstiffened Cylindrical Shells
11.2.1 Equilibrium Equations for Cylindrical Shells
Figure 11.3 shows an infinitesimal element of a shell with its associated stress resultants from
the membrane and bending actions. Considering equilibrium in the axial, circumferential, and
radial directions, the following equations may be obtained:
Lateral load-carrying
due to Ne
Figure 11.3 Shell Stress Resultants
(1 1.1)
(11.2)
(1 1.3)
where,
N, =o,t
N,, = N& = bxet (1 1.4)
Ne =set
