ABSTRACT
The buckling of axially compressed cylindrical shells is known to be sensitive to imperfections, as is the buckling of spherical shells under external pressure. Regarding these problems, a very slight imperfection can be the starting point from which local deformation is initiated and developed and, consequently, overall structural stability is lost. In this study, we attempt to use the recent general-purpose finite element code by applying artificial damping from which we can overcome the difficulty in performing the analysis due to local instability.
