Robert O. Ritchie is the H.T. & Jessie Chua Distinguished Professor of Engineering at the University of California, Berkeley, and Senior Faculty Scientist at the Lawrence Berkeley National Laboratory. He received M.A., Ph.D. and Sc.D. degrees in Physics/Materials Science from Cambridge University. He is known for his research into the mechanics and micro-mechanisms of fracture and fatigue of a broad range of structural and biological materials where he has published over 700 papers, with a Google Scholar h-index of 103. He is a member of National Academy of Engineering in the U.S., a Fellow of the Royal Society (FRS) and of the Royal Academy of Engineering (FREng) in the U.K., and is a foreign member of the Russian Academy of Sciences and the Royal Swedish Academy of Engineering Sciences.