Paul M. Naghdi

Paul Mansour Naghdi ( born March 29, 1924 in Tehran, † July 9, 1994 in Berkeley ) was an Iranian- American civil engineer and scientist for mechanics. He was a professor at the University of California, Berkeley.

Life and work

Naghdi came in 1943 in the United States to study. He attended Cornell University, where he 1946 he received his bachelor's degree in Technical Mechanics ( Mechanical Engineering ) made ​​( and, among other things hydrodynamics in Sydney Goldstein heard and elasticity theory with James N. Goodier ), and the University of Michigan, where he in 1948 his master's degree made ​​. He was there a disciple of Stephen Timoshenko, who emerged in 1949 as a visiting professor of the theory of plates. In the same year he became a U.S. citizen. From 1949 he was instructor at the University of Michigan, where he received his doctorate in 1950. In 1951, he was Assistant Professor, Associate Professor in 1953 and 1954, he received a full professorship at the University of Michigan. In 1958 he became a professor at Berkeley, where he was the Department of Applied Mechanics co-founded and from 1964 to 1969 whose board. 1963 and 1971 he was Professor Miller in Berkeley. From 1991, he was Roscoe and Elizabeth Hughes Professor of Mechanical Engineering. In 1994 he retired and received the Berkeley Citation, the highest distinction of the university. In the same year he died of lung cancer.

He dealt with many areas of theoretical mechanics and continuum mechanics, particularly shell theory ( where he developed a general dynamic theory of deformation of shells on the basis of the Cosserat surface and 1972, the article on plates and bowls in the manual of physics wrote ) and plasticity theory ( infinitesimal plastic deformations, which he wrote in 1960 a review article and large deformations, where he worked with Albert E. Green, whom he first met in 1955 ). He also worked on linear and non-linear theory of elasticity, viscoelasticity, theory of deformable rods, liquid jets and surfaces of liquids (which he treated on the model of Cosserat surface in shell theory and applied them to a wide variety of hydrodynamic problems ), thermo mechanics, theory of mixtures, general continuum mechanics. He often worked with the friend of his British theorist Albert E. Green together (eg in the thermal mechanics and theory of mixtures ), who was a frequent guest scientist in Berkeley because of that.

In 1972, he stood before the Committee for Applied Mechanics of ASME and 1979/1980 the U.S. National Committee for Theoretical and Applied Mechanics. In 1956 he received the Distinguished Faculty Award from the University of Michigan. In 1958 he was Guggenheim Fellow. In 1961, he received the George Westinghouse Award of the ASEE and 1980, the Timoshenko Medal of the ASME. In 1983 he became an honorary member of ASME. In 1984 he became a Fellow of the National Academy of Engineering. In 1986, he received the Eringen Medal. He was an honorary doctorate from the Catholic University of Leuven (1992 ) and the National University of Ireland (1987).

He was married and had a son and two daughters.

Writings

  • Foundations of elastic shell theory, in Ian Sneddon, Rodney Hill ( ed.) Progress in solid mechanics, Volume 4, 1963, North Holland, pp. 1-90
  • The theory of shells and plates, in Clifford Truesdell (ed.) Mechanics of Solids II, Encyclopedia of Physics (Editor Siegfried Flügge ), Vol VIa / 2, Springer Verlag 1972, pp. 425-640
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