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Commercial Marine Industry Marine Composites Structural Topside Superstructure Masts Stacks Foundations Doors Hatches Liferails Stanchions Fairings Bulkheads Propellers Control Surfaces Tanks Ladders Gratings Machinery Piping Pumps Valves Heat Exchangers Strainers Ventilation Ducting Fans, Blowers Weather Intakes Propulsion Shafting Tanks Gear Cases Diesel Engines Electrical Enclosures Motor Housings Condenser Shells Functional Shafting Overwraps Life Rails/Lines Handrails Bunks/Chairs/Lockers Tables/Worktops Insulation Nonstructural Partitions Seachest Strainers Deck Grating Stair Treads Grid Guards Showers/Urinals Wash Basins Water Closets Mast Stays/Lines Current regulatory restrictions limit the use of composite materials on large passenger ships to nonstructural applications. This is the result of IMO and USCG requirements for non-combustibility. ASTM test E1317-90 (IMO LIFT) is designed to measure flammability of marine surface finishes used on non combustible substrates. These include deck surfacing materials, bulkhead and ceiling veneers and paint treatments. Systems that qualify for testing to this standard include nonstructural bulkheads, doors and furniture. Momentum exists to increase the use of composite materials, especially for above deck structures where weight and styling are major drivers. Stylized deckhouse structure and stacks are likely candidates for composites, as regulations permit this. Commercial Deep Sea Submersibles Foam cored laminates are routinely being used as buoyancy materials in commercial submersibles. The Continental Shelf Institute of Norway has developed an unmanned submersible called the Snurre, with an operating depth of 1,500 feet, that uses high crush point closed cell PVC foam material for buoyancy. From 1977 to 1984 tShneurre operated successfully for over 2,000 hours in the North Sea. The French manned submersNibaleu,tile, recently visited the sea floor at the site of the Titanic. The Nautile is a manned submersible with operating depths of 20,000 feet and uses high crush point foam for buoyancy and FRP materials for non-pressure skins and fairings. The oil industry is making use of a submersible namDeadvid that not only utilizes foam for buoyancy, but uses the foam in a sandwich configuration to act as the pressure vessel. The use of composites in the David’s hull allowed the engineers to design specialized geometries that are needed to make effective repairs in the offshore environment. [1-1] 16PDF Image | Marine Componsites
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