Issue 41

Fracture and Structural Integrity, 41 (2017); ISSN 1971-9883 XII alloys; estimation of short crack behavior, utilizing Kmax-constant test procedures; interpretation of macroscopic and microscopic fatigue fracture surface markings; and studies of overload interaction effects on FCP behavior. His and Dr. John Manson’s pioneering studies associated with the FCP response of engineering plastics explored the role of molecular weight, second phase particles, test frequency, and identified unique fractographic features in polymeric solids. In addition, Prof. Hertzberg has had a distinguished university teaching career along with organizing and teaching numerous fracture mechanics short courses in Asia, Europe and U.S. His six textbooks on fracture mechanics and fatigue of engineering plastics are highly regarded. He is recipient of the TMS Educator Award, Fellow of ASMI, and numerous research and teaching awards. Richard Hertzberg Ashok Saxena Professor Saxena is a Distinguished Professor and Dean Emeritus in the Department of Mechanical Engineering at the University of Arkansas. His contributions to time-dependent fracture mechanics (TDFM) enabled its use in materials selection and in establishing criteria for reliability assessment and fracture resistance of high temperature components. His specific contributions include proposing, and validating the Ct parameter for predicting creep crack growth under small- scale-creep and transient conditions and its extension for use under simultaneous creep and fatigue loading. These developments have led to several international material test standards. He has held leadership positions in ICF as Vice President and the Awards Committee Chair. He is an honorary fellow of ICF and has received awards including the George Irwin Medal and the Fracture Mechanics Medal from ASTM and the Wohler Fatigue Medal from ESIS; he is an elected member of the European Academy of Sciences. Professors Sylvie Pommier (University Paris Saclay, France) and Francesco Iacoviello (University of Cassino, Italy) are the co-recipients of the Constance Tipper Silver Medal Sylvie Pommier Francesco Iacoviello Professor Sylvie Pommier serves as a Full Professor in the Department of Mechanical Engineering at Ecole Normale Supérieure Paris-Saclay (Université Paris-Saclay). She is recognized for her contributions to the advancement of nonlinear fracture mechanics for fatigue crack growth under complex loading conditions in metals and structures. She developed an incremental model for crack growth based on principal components analysis and the thermodynamics of irreversible processes. This method allows modeling of crack growth that is accompanied by non-linear material behavior with a formalism based on non-local state variables especially tailored for characterizing the non-linear behavior of the material