Member: National Academy of Sciences, National Academy of Engineering, American Academy of Arts and Sciences. Foreign Member: Royal Society, London; Czech, Austrian, Italian (dei Lincei), Spanish, Japanese (EAJ), Canadian Academy of Engineering (CAE), Indian (INAE), and Greek (Academy of Athens) national academies; Lombard Institute, Academia Europaea (London), and European Academy of Sciences and Arts (Salzburg)

7 honorary doctorates (CTU Prague, TU Karlsruhe, UC Boulder, Milan Polytechnic, INSA Lyon, TU Vienna, Ohio State); Honorary member of ASCE, ASME, American Concrete Institute (ACI), Int. Union of Res. Lab’s in Material and Structures (RILEM, Paris) and CSM, CSCE and CCS Prague

Austrian Cross of Honor for Science and Art I. Class, from pres. of Austria; ASME Medal, Timoshenko, Nadai & Warner Medals of American Society of Mechanical Engineers (ASME); von Karman, Freudenthal, Newmark, Biot, Mindlin, and Croes Medals, and Huber, Lifetime Achievement and TY Lin Awards of American Society of Civil Engineers (ASCE); Prager Medal of Society of Engineering Science (SES); Outstanding Achievements Award of Am. Soc. for Composites; Outstanding Research Award (ASC), L’Hermite Medal (RILEM); Exner Medal (Austria); Torroja Medal (Spain); Solin, Bazant (Sr.), CSM and Stodola Medals (Czech Rep., Slovakia); and others. Guggenheim Fellow. Past President of SES, IA-FraMCoS (founder) and IA - ConCreep (founder). Past Editor-in-Chief of ASCE Journal of Engineering Mechanics

Illinois Registered Structural Engineer (S.E.), since 1971

Mechanics of materials and structures and structural safety, with emphasis on the mechanics of fracture, damage and creep, structural stability, finite strain, size effects and scaling, probabilistic mechanics, nano-mechanics, diffusion and hygrothermal effects, and with applications to concrete, fiber composites, tough ceramics, rocks, gas shale, soils, thin films, bone, snow and sea ice.