Strength analysis of warship hull’s bottom loaded by the pressure wave from a non-contact explosion of sea mine explosion of sea mine

Abstract The study was based on the analysis of stamina steel flat bottom section transport warships, burdened by spherical pressure wave from non-contact explosion TNT at a distance 20 m under keel. This aims to determine mass required break hull. task solved finite element method (FEM) explicite using CAE program [1], in which hull’s modelled as thin shell space. burden with impulse specified formula introduced T.L. Geers, K.S. Hunter and R.S. Price [2]. To describe material properties, considering high-speed strain, Johnson-Cook model used [3]. Therefore, main goal hereby paper is present how correctly impact large, concentrated masses ship’s equipment its presents results calculated stress strain states analysed construction