ADVANCED ELECTROMAGNETIC SIMULATION TECHNIQUES FOR NOVEL AND MODERN MATERIALS IN AEROSPACE COMPOSITES

摘要

In recent years, composite use in air and space craft has expanded dramatically. Compositernmaterials present unique challenge for vehicle survival in lightning and related electromagneticrnenvironments. The current approach is to incorporate expended metal foils onto the outer layer ofrnvehicles which protrude at the edges to facilitate bonding. These metal foils add significantrnweight and processing complexity. A number of alternative materials have been proposed tornreplace metal foils. Further, addition of thermal protection materials or other coatings such asrnpaint can cause metal foil-treated composites to fail in the lightning environment. In order torndesign lightning hardened vehicles with metal foils or to evaluate materials to replace the foils,rnadvanced simulation technologies are required. This submission describes our measurement andrnsimulation approach that is useful to advance the electromagnetic compatibility of compositernmaterials.