About the authors ROBERT L. SIERAKOWSKI, PhD, is Professor in the Department of Civil and Environmental Engineering and Geodetic Science at Ohio State University in Columbus. His previous books include Damage Tolerance of Composites and The Behavior of Structures Composed of Composite Materials. SHIVE K. CHATURVEDI, PhD, is Associate Professor in the Department of Civil and Environmental Engineering and Geodetic Science at Ohio State University in Columbus. A former member of the editorial board of the international journal Composites Engineering, he authored an entry in the multivolume Encyclopedia of Composites.