Plus Designs, Inc. (PDI) offers design and analysis engineering consulting services with emphasis on advanced materials, including composite materials, refractory metals, and refractory ceramics, to support the high temperature materials community in the aerospace and defense industries. Anchored in two decades of aerospace engineering experience with composite materials, refractory metals, and refractory ceramics research supporting the development of advanced design solutions for extreme environment applications. the firm offers relevant thermal-structural design and analysis experience with a variety of refractory non-metals/metals, oxides, carbides, borides, nitrides, alloys, superalloys, and composite materials including orthogonal weaves, polar weaves, braiding, involutes, filament winding, 2D layups, 4D layups, and needling. Principals of the firm have contributed to several designs that have been tested by Orbital-ATK, Air Force Research Laboratory (AFRL), Naval Air Warfare Center Weapons Division (NAWCWD), Allegany Ballistics Laboratory (ABL), Aerojet Rocketdyne, National Aeronautics and Space Administration (NASA), and Redstone Arsenal.