Plus Designs Inc.

Plus Designs, Inc. (PDI) is an engineering consulting firm founded in 2016 that specializes in design and analysis services for advanced materials, including refractory metals, ceramics, and composites. The company focuses on supporting high-temperature applications in the aerospace and defense sectors, providing expertise in thermal-structural modeling, material property assessment, and extreme environment design. By utilizing theoretical science to define geometry, boundary conditions, and loads, PDI helps clients understand the physics of complex material interactions to prevent component failure and optimize performance. The company also collaborates with various material fabricators to bridge the gap between design and physical implementation.

These engineering services are critical for customers and partners, including federal agencies such as NASA, DARPA, and the Air Force, as well as private organizations like Northrop Grumman and GE Aviation. By offering high-fidelity analysis, PDI enables the development of robust, non-eroding components for applications like rotating detonation rocket engines, allowing for longer service lifetimes and reduced system weight by eliminating complex active cooling requirements. The firm's work involves active participation in U.S. government R&D programs, contributing to advancements in thermal-chemical resistance and material durability for high-heat aerospace environments.