Hull material evaluation for navy 44 sail training craft

摘要

Material characterization tests were performance at the U.S. Naval Academy to identify a toughened laminate for the new Navy 44-foot sail training vessels. After preliminary analysis using classi- Cal lamination theory, four different Cores, five laminates and seven resin sys Tems were tested in UV exposure, four- Point bending, lateral panel pressure, And simulated improvements in Showed substantial improvements in Strength, toughness, cost and weight Were possible over the existing laminate, With the lightest acceptable laminate Yielding a weight savings equivalent to 3.5/100 of the vessel's displacement.