Evaluating structural crashworthiness and progressive failure of double hull tanker under accidental grounding: bottom raking case

Abstract

Remarkable consequences of maritime accident can be various, including structural damage, loss of life and marine pollution. During an accidental phenomenon, such as ship grounding, the amount of oil spillage indicates casualties’ extent of surrounding sea water. Effort to provide protection for sea environment against such event has been conducted actively by developing navigational instruments, and passively using structural development and assessment. The accidental grounding is, however, a very complicated process with high sensitivity to given factors during its occurrence. Variety in ship type, location, obstruction etc. affected by advance improvement in naval technology, invites sustainable analysis for structural crashworthiness and failure to produce evaluation data.

Keywords

• ship grounding
• double hull tanker
• seabed geometry
• non-linear finite element method (nlfem)
• crashworthiness criteria
• progressive failure