Simplified buckling-and-contact-based expansion method for assessment of crashworthiness of double-hulled ship structure

摘要: Abstract Ship-to-ship collision events can have severe consequences such as loss of life and environmental degradation. For this reason, modern ship designs are required to incorporate a double-hulled structure prevent inner-hull damage from events. Using the experimental or numerical method analyze crashworthiness structures entails much effort, for which reason neither is easy adopt at early design stage. In paper, an existing simplified called Ito's improved by new buckling-and-contact-based expansion method. This be applied double-hulled-structure outer-hull-local-rupture failure mode. The perpendicular bow-to-side scenario assumed conservative estimation structure. was verified in present study simulations several cases. results simulation were similar blunt shape striking body but different sharp shape.