Comparison between the experimental (σ) and theoretical (σc) critical stress for the buckling of axially compressed cylindrical shells as a function of the ratio R/t, where R is the cylinder radius (ν = 0.3) [12]. The shaded area shows the interval of values of the ratio R/t considered in this work. Axisymmetric and asymmetric buckling modes are also shown.

Contexts in source publication

Context 1

... shown in Fig. 6, early experimental tests indicated that real cylinders buckle at loads much lower than the classical buckling load (22) [13,14]. The discrepancy gets larger as the ratio R/t increases. The search for reasons responsible for this discrepancy led to an enormous amount of research [15]. This sig- nificant deviation from classical theory ...

Context 2

... classical theory could, a priori, result from prebuckling deformations, geometric imper- fections or load eccentricities. It was shown that the effect of prebuckling deformations is small and is not a primary reason for the difference between the classical prediction and experimental results and the great scatter of experimental results shown in Fig. 6 [16,17]. For axi- ally compressed isotropic cylinders, small load eccentric- ities do not have either a major influence on the buckling strength [18]. It was consequently shown that the single dominant factor contributing to the discrepancy between theory and experiment for axially compressed isotropic cylinders is geometric ...