Modelling and behaviour of cylindrical shell structures with helical features
Cylindrical shells with helical features are not widely studied computationally. The study proposes a robust and powerful method of parametric helical meshing. Method is illustrated on the post-buckling behaviour of axially-compressed cylinder. Imperfection sensitivity of spirally welded cylinder is investigated.
helical meshing imperfection sensitivity spiral imperfections residual stresses nonlinear finite element analysis shell buckling