Shock Response Analysis of Blast Hardened Bulkhead in Partial Chamber Model under Internal Blast

Abstract

It is necessary to restrict the damage area for the enhancement of ship survivability under the internal blast of a Semi-Armor Piercing (SAP) warhead inside a ship's compartment, and to develop design guidance and performance verification technique of Blast Hardened Bulkhead (BHB) for the protection of its damage diffusion to adjoining compartment and continuous flooding. The objective of this study is to develop shock response analysis technique of BHB under the internal blast using MMALE (Multi-Material Arbitrary Lagrangian Eulerian) formulation and FSI (Fluid-Structure Interaction) analysis technique of LS-DYNA code through the verification of internal blast tests of partial chamber model.