G T HahnGeorge T. Hahn (ScD, MIT, 1959) is Professor Emeritus of Mechanical Engineering and Materials Science at Vanderbilt University, Nashville, TN. Prior to that he was Manager of the Metal Science Section at Batelle Laboratories in Columbus, OH. H is a Fellow in the American Society of Metals and has published well over 150 papers in the fields of fracture mechanics, rolling contact, and riveted connections. Read More Read Less