Brett A.?Bednarcyk?is a Senior Research Engineer in the Materials and Structures Division at NASA Glenn Research?Center, Ohio, USA. He serves as a composite expert for NASA Space Launch Systems (SLS) projects and the NASA Engineering and Safety Center Structures Technical Discipline Team. He has held visiting appointments at the RWTH Aachen University (Germany) and the University of Virginia. He was awarded the NASA Glenn Abe Silverstein outstanding research award in 2015 and NASA’s Exceptional Achievement Medal in 2013. He has over 20 years of research experience, over 300 technical publications, and is the primary developer of NASA’s MAC/GMC composites software.