Hybrid Randomness of Initial Imperfections and Axial Loading in Reliability of Cylindrical Shells

摘要

This study investigates the combined effect of randomness in initial geometric imperfectionsnand the applied loading on the reliability of axially compressed cylindrical shells. Innorder to gain insight we consider simplest possible case when both the initial imperfectionsnand the applied loads are uniformly distributed. It is shown that hybrid randomnessnmay increase or decrease the reliability of the shell if the latter is treated, experiencingnthe sole randomness in initial imperfections.