AFRL, partners develop innovative tools to accelerate composites certification at new materials research facility Published Jan. 29, 2020 By Donna Lindner Air Force Research Laboratory WRIGHT-PATTERSON AIR FORCE BASE, Ohio – In partnership with industry, a team of Air Force Research Laboratory/Cornell High Energy Synchrotron Source (CHESS) personnel are developing the capability to accelerate certification of advanced manufactured composite structures. The Materials Solutions Network will drive composite manufacturing into a physics-based exact science that can be predicted and modeled, allowing faster implementation of low-cost, short-term and limited-life technologies. A newly upgraded CHESS facility will allow breakthroughs in materials, processes and designs for aerospace and military components. The ability to process material models faster than ever will enable shorter times toward certification of new materials and difficult processing methods such as additive manufacturing. “The facility is unique because it combines state-of-the-art synchrotron-based resources and techniques with an explicit mission to address current and emerging challenges of advanced manufacturing,” said Arthur Woll, Director of the MSN-C subfacility. “This combination of capabilities and mission allows projects at MSN-C to be prioritized by their importance to addressing manufacturing challenges, rather than their relevance to academic scholarship. Furthermore, CHESS is one of only five high-energy synchrotron facilities worldwide, making it particularly suitable for the kinds of measurements needed to address these challenges.” Two new X-ray beamlines – a structural materials beamline (for which higher energy X-rays are required to penetrate, e.g., metals) and a functional materials beamline (with lower energies for polymers and composites) are housed at the facility. The structural materials beamline uses high energy X-rays to understand the evolving internal structure of metals, ceramics and composites during service and processing conditions. The functional materials beamline is designed for analysis of soft materials, such as organic molecule and polymer-based materials and composites used in lightweight structural components and organic electronics, during processing and under real-life load conditions. The beamline allows manufacturers and researchers to observe materials in real-time and at atomic scale for structural components such as the stationary section of a rotary system for DOD technologies or additively manufactured articles for limited life applications. By obtaining tangible measurement data such as material structure in regards to gaps and interfacial quality, problems and processes can be eliminated sooner and refined for quality control and consistency. This revolutionary development pushes an unprecedented real-time, high resolution understanding of the manufacturing of composites. The research reveals processing effects and variations on thermoplastic and thermoset composites during consolidation processes such as stamping and additive manufacturing. “We are now able to look at crystallization of thermoplastic feedstock and composites during 3D printing in real time, at one micrometer resolution,” said Dr. Hilmar Koerner, research team lead in the Structural Materials Division of AFRL. “Mapping the detailed out-of-equilibrium and time dependent morphology data of resins and reinforcement filler onto the process history will allow manufacturers to see fine details in hours to a few days rather than months and years, allowing them to make much quicker go/no-go decisions compared to the past.” Partnerships between Department of Defense, industry and academia address DOD challenges in materials discovery, processing and manufacturing of disruptive technologies and enable advances in materials and designs for a multitude of military components. The Air Force Research Laboratory (AFRL) is the primary scientific research and development center for the Air Force. AFRL plays an integral role in leading the discovery, development, and integration of affordable warfighting technologies for our air, space, and cyberspace force. With a workforce of more than 11,000 across nine technology areas and 40 other operations across the globe, AFRL provides a diverse portfolio of science and technology ranging from fundamental to advanced research and technology development. For more information, visit: www.afresearchlab.com.