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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.

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.

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We studied experimentally the behavior of thin cylindrical silos partially filled with grains. We investigated the scaling behavior of the collapse threshold by registering the critical height of the granular bed at which the silo buckles irreversibly and collapses during the discharge of grains. Assuming that the effective friction between the gra...

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 ...

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