Numerical simulation of surface shield effects to waterblast wave

Abstract

When a naval ship is attacked by an underwater explosion (UNDEX), the ship can be severely damaged by shock waves and gas bubble pulse: such an attack can put the crew in danger and possibly destroy the ship. Preventing damage to ships is of great interest in ship design. Elastomers, or rubber-like materials, and core sandwich structure are well known to reduce impact loading. This study researched these materials, structures and verified their ability to mitigate shock loading in an UNDEX environment. Furthermore, formulas to optimize sandwich structure design are presented and its effectiveness has been confirmed. (C) 2012 Elsevier Ltd. All rights reserved.