The design of spherical pressure hull under hydrostatic pressure to a depth of 2000 m using ABS rule and ABAQUS software

In this paper, linear and nonlinearbuckling of sphericalshellsunder the influence ofthehydrostatic pressure of the deep sea has been investigated. ABS rule is used For buckling strength calculetion and specific of material extracted from ASME part2 section D. Diameter of spherical shell is 2 meter and final depth for failure is 2000 meter. Spherical shell thickness obtained by solving equations and model of Spherical shell solved with ABAQUS software. The non linear graph from software result was ploted and the critical point of nonlinear buckling calculated from graph, compared with ABS rule, and spherical shell thickness was obtained.