Ford Research Laboratories in 1983. His work prior to that included service as an officer in the U.S. Air Force at the Wright Aeronautical Laboratories and as a visiting scientist at the Brown-Boveri Corporate Research Center in Baden, Switzerland. Dr. Allison has more than 120 publications and four patents. He was the 2002 President of the Minerals, Metals, and Materials Society (TMS), a global technical society for materials professionals. He is a fellow of ASM and has received numerous awards, including the Arch T. Colwell Award from the Society of Automotive Engineers, the Henry Ford Technology Award, Ford Technical Achievement awards, Ford Innovation awards, and the Air Force Systems Command Scientific Achievement Award. Dr. Allison was elected to the National Academy of Engineering in 2011. He holds a Ph.D. in metallurgical engineering and materials science from Carnegie Mellon University, an M.S in metallurgical engineering from Ohio State University, and a B.S. in engineering mechanics from the U.S. Air Force Academy.

Julie Chen is a professor of mechanical engineering and interim vice provost for research at the University of Massachusetts–Lowell (UML). She is one of three co-directors of the UML Nanomanufacturing Center of Excellence and is also co-director of the Advanced Composite Materials and Textile Research Laboratory. Before coming to UML, Dr. Chen was a program director for materials processing and nanomanufacturing at the National Science Foundation. She has served on the faculty of Boston University, has been a NASA-Langley Summer Faculty Fellow, has been a visiting researcher at two French universities, and has been an invited participant on three occasions in the National Academy of Engineering’s Frontiers of Engineering Program. Dr. Chen has more than 20 years of experience in the mechanical behavior and deformation of fiber structures, fiber assemblies, and composite materials, with an emphasis on composites processing and nanomanufacturing. She serves on the editorial boards of the Journal of Nanoparticle Research and the International Journal of Green Nanotechnology: Materials Science and Engineering. Dr. Chen holds B.S., M.S., and Ph.D. degrees in mechanical engineering, all from the Massachusetts Institute of Technology.

David R. Clarke (NAE) is the Gordon McKay Professor of Materials and Applied Physics in the Harvard School of Engineering and Applied Sciences. He holds a B.Sc. degree in applied sciences from Sussex University in the United Kingdom and a Ph.D. in physics, as well as an Sc.D. degree from the University of Cambridge. Prior to moving to Harvard, he was a professor of materials at the University of California, Santa Barbara. Previous positions include senior manager, IBM Research Division; associate professor, Massachusetts Institute of Technology; group leader, Rockwell International Science Center; and senior scientific officer, the National Physical Laboratory (United Kingdom). Dr. Clarke has published more than 450 papers and holds five patents. He is a member of the National Academy of Engineering and a fellow of the American Physical Society, and he received an Alexander von Humboldt Foundation Senior Scientist Award. In addition, he is a Distinguished Life Member of the American Ceramic Society and was recently listed as author of one of the 11 best papers in the 110 years of publication of the Journal of the American Ceramic Society.

Bradford Cowles is an aerospace materials and structures consultant to both industry and government agency clients. Mr. Cowles has extensive experience in aerospace propulsion materials, specializing in materials behavior, materials-structure interactions, and life prediction. Mr. Cowles recently retired after 37 years at Pratt & Whitney, where his final position was senior fellow–Discipline Lead for Materials & Processes Engineering. This was the most senior technical position in a 325-person comprehensive materials engineering organization specializing in gas turbine engine materials and processes, including all phases of their development, characterization, and use in products. His responsibilities included oversight of technical projects and technology development programs, resolution of technical and product issues, and strategic planning for future technology and discipline development efforts. Mr. Cowles has extensive experience in titanium and nickel-based superalloys, including directionally solidified and single-crystal materials, as well as in advanced materials such as structural intermetallics. He has extensive expertise in the mechanics of materials, life prediction and damage tolerance methods, and experimental methods related to testing of materials and engine components. Recent focus areas include advanced surface treatments such as laser shock processing as well as materials and structures prognosis technology for gas turbine engines. In 2010, Mr. Cowles focused on developing materials-related strategic plans for a major aerospace company, con-



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