The proposed effort has broad applications across many NASA missions. Stiffened structures exist in launch vehicles, especially in their tank structures. Tanks have to withstand high stress during launch, and provide stability at cryogenic temperatures. Essentially, any structure that is part of a NASA mission could benefit from new, lightweight structural components. These include: future launch vehicle, crew vehicle, surface habitats, robotic explorers or cryogenic tank structures. Non-NASA applications include aircraft such as the F-35, CH53-K, V-22, ground combat vehicles, and aluminum ship designs. Commercial aircraft such as the Boeing 777, Airbus A-380, and Airbus A340-600 could also benefit by adding MMC SR concepts. Applications in the automotive market include aluminum and magnesium castings, flywheels for hybrid vehicles, liners for lightweight composite tanks used on alternative fuel vehicles, and other types of storage tanks. Incorporation into golf club shafts, tennis rackets, and bicycle frames for the sporting goods market are also possible.