In 1949 he sustained his PhD thesis entitled “Contributions to the study of elastic stability of statically indeterminate systems”. He obtained a PhD engineer with magna cum laude distinction, which was equaled in 1963 by the Ministry of Education with PhD docent title.
• In 1963 he was elected corresponding member of the Romanian Academy, and in 1974 full member.
• In 1972 he received the title of professor emeritus and in 1974 the title of emeritus scientist.
• In 1987 he was elected member of the European Academy of Arts, Sciences and Letters.
• In 1996 he became Doctor Honoris Causa from the University of Timişoara and Craiova.
• In 1998 he became Doctor Honoris Causa of the Technical University "Gheorghe Asachi" and of Technical University of Civil Engineering Bucharest, and two years later became Doctor Honoris Causa of the University of Piteşti and Petroşani.
• In 2000 he became Doctor Honoris Causa of University "Lower Danube" Galaţi and in 2001 of the University "Stefan cel Mare" Suceava.
• In 2002 he was awarded the title of Doctor Honoris Causa by the University "Transilvania" of Braşov and of "Ovidius" University in Constanţa.
• He was Chairman of the Academy of Technical Sciences in Romania.