Reduce acquisition and life-cycle costs by developing and implementing optimized metalworking procedures for candidate commercial steels planned for U.S. naval surface ship applications. These procedures will result in the best steel manufacturing processes for the most cost-effective price.
An estimated $8.8 million cost avoidance resulted with implementation of ABS grade EH-36 steel plate as the sole primary hull material for the LPD-17 ship series. Structural integrity of ABS Grade EH-36 steel plate was ensured with optimization of welding, flame bending and forming procedures. As part of the material evaluation, an improved fracture toughness based material assessment methodology was developed. This methodology enables simple, inexpensive material evaluation tests to be used to ensure that structural performance requirements are met. The Navy has used the improved technique to study several material performance issues and developed a better understanding of the issues at a reduced cost.
Technology implementation was coordinated through the appropriate Navy program office. Transition of technology to industry was executed via users groups, technical reports and technology demonstrations. The users groups were designed to focus on related partners, such as shipyards, steel manufacturers, and Navy program offices and technical codes.