1 Department of Naval Architecture and Offshore Engineering, Technical University of Denmark2 Department of Mechanical Engineering, Technical University of Denmark
Simple formulas for determining impact strength of high-speed craft collisions with floating objects are given in this note. Thereby the minimum mass of a floating object that just ruptures the shell plating is predicted. The minimum thickness requirements of DNV rules for aluminiumcrafts and GRP single skin crafts can be converted to critical impact energy and minimum object mass. Some comparisons show an acceptable agreement between present method and DNV test results.