Paul Neményi

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Paul Felix Neményi (born June 5, 1895 in Fiume , † March 1, 1952 in Washington, DC ) was a Hungarian civil engineer and engineering scientist .

Life

Neményi studied civil engineering at the TH Budapest from 1912 to 1918 and then emigrated to Germany. One reason was the right-wing Horthy regime. He received his doctorate in 1922 at the TH Berlin with a dissertation on shear stresses in curved beams (published in 1921 in the journal for applied mathematics and mechanics, 1st year, issue 2). He was an active socialist in the International Socialist Combat League . First he published about reinforced concrete construction (also a Hungarian textbook on it) and from the end of the 1920s on hydraulic engineering and soil mechanics as an employee at the Institute for Hydraulic Engineering of Adolf Ludin . With Hermann Föttinger , he transferred concepts of fluid mechanics such as singular points in the form of double sources (double eddies) to the theory of elasticity and formulated a reciprocity theorem in the presence of singularities and a theory of lines of influence of loads acting at singular points. In the theory of plates, Adolf Pucher developed the singularity method further.

In 1934 he fled as a Jew from the National Socialists to Copenhagen, where he worked at the Technical University, and then to England. His son Peter grew up in England, his wife died in exile in Paris. In 1939 he went to the USA to the Iowa Institute of Hydraulic Research. From 1941 he taught at the University of Colorado in Denver and from 1944 at the State College of Washington in Pullman. From 1946 he was at the Naval Ordnance Laboratory in White Oak (Maryland) and then at the Naval Research Laboratory in Washington, DC, where he became head of the theoretical mechanics department. He died of a heart attack. In the USA he dealt with shell theory, elasticity theory and gas dynamics. In 1936 he was a lecturer at the International Congress of Mathematicians in Oslo ( contributions to the calculation of shells under asymmetrical and unsteady loads ).

One student was Clifford Truesdell , who attended his mechanics class at Brown University . He had a number of other important students in the United States such as Jerald L. Ericksen .

In the 2000s it was claimed that Nemenyi was the biological father of world chess champion Bobby Fischer .

literature

Fonts

  • Contributions to the mushroom ceiling theory, concrete and reinforced concrete construction , Volume 24, 1925, pp. 243–247.
  • A new singularity method in the theory of elasticity, ZAMM, 9th year, issue 6, 1929, p. 488, 10th year, issue 6, 1930, p. 383.
  • Structures on an elastic, flexible base, ZAMM, 11th year, issue 6, 1931, pp. 450–463.
  • Streamlines and main stress trajectories, ZAMM, 13th year, 1933, issue 10.
  • Hydraulic fluid mechanics, Barth, Leipzig 1933.
  • Shell and Disk Structures (Danish), Bygning Statiske Meddelelser, Volume 6, 1934, pp. 11-62.
  • Contributions to the calculation of shells under unsymmetrical and discontinuous loading (Danish), Volume 8, 1936, pp. 53–72.
  • with Truesdell: A stress function for the membrane theory of shells of revolution, Proc. Nat. Acad. USA, Vol. 29, 1943, pp. 159-162.
  • Recent developments in inverse and semi-inverse methods in the mechanics of continua, in: Richard von Mises, Theodore von Karman, Advances in Applied Mechanics, Academic Press 1951, pp. 123-151.
  • with AW Saenz: On the geometry of two-dimensional elastic stress fields, Journal of Rational Mechanics and Analysis, Volume 1, 1952, pp. 73-86.
  • with A. v. Tuyl: Two-dimensional plastic stress systems with isometric principal stress trajectories, Quarterly Journal of Mechanics and applied Mathematics, Volume 5, 1952, pp. 1-11.
  • The main concepts and ideas of fluid dynamics in their historical development, Archive for the History of Exact Sciences, Volume 2, 1962, pp. 52-86.

Individual evidence

  1. ↑ files reveal how FBI Hounded chess king . Philadelphia Inquirer , Jan. 21, 2008
  2. ↑ Fallen hero . Der Spiegel, March 21, 2011
personal data
SURNAME Neményi, Paul
ALTERNATIVE NAMES Nemenyi, Paul Felix
BRIEF DESCRIPTION Hungarian civil engineer
DATE OF BIRTH June 5, 1895
PLACE OF BIRTH Rijeka
DATE OF DEATH March 1, 1952
Place of death Washington, DC