Optimal design of shells against buckling under overall bending and external pressure

Optimization of cylindrical shells stiffened by rings under external pressure including their post-buckling behaviour

“…Jasion and Magnucki [8] presented a procedure for designing a family of shells of revolution of a constant volume loaded by uniform external pressure. The problems of an optimal design of axially symmetrical shells against instability under hydrostatic pressure was considered by Krużelecki and Trzeciak [9], under elevated temperature induced load by Życzkowski et al [10] and under combined loadings by Barski and Krużelecki [11] and Barski and Krużelecki [12]. The volume of a material and a capacity of a shell were considered as the equality constraints.…”

Collapse of reinforced thermoplastic pipe (RTP) under combined external pressure and bending moment

“…Cheng (2005) gave the mathematical formulations for the pre-buckling deformation arch structure under external pressure. Barski and Krużelecki (2005) investigated the problem of stability of shells under overall bending and external pressure. Effects of anisotropy and transverse shear stiffness were taken into consideration using an analytical model based on deep shell theory.…”

Optimal Design of Deep-Sea Pressure Hulls using CAE tools

“…Both geometric configurations of pressure hulls(i.e. hull shape, stiffener layout and wall thickness) and type of construction materials have been considered as the main parameters influencing the structural safety of pressure hulls (Bagheri et al, 2011;Barski and Kruzelecki, 2005;Cartie et al, 2006). Primitive shapes of spheres, cones, ellipsoids and combinations of them have been widely used to define the external shape of pressure hulls.…”