Karl-August Reckling

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Karl-August Reckling (born March 4, 1915 in Kiel ; † October 24, 1986 in Hamburg ) was a German engineer and university professor who dealt with mechanics, vibration and ship stability issues. He was the son of the naval director's secretary and the last master chef in the Dobbertin monastery, Karl Reckling, and the grandson of the military musician and composer August Reckling .

Youth and Studies

Reckling attended grammar school in the Prussian district town of Wernigerode from 1925 to 1934 , where his parents moved from Schwerin in 1924 . After graduating from high school, Reckling went to sea for some time in order to then study shipbuilding technology at the TH Berlin with István Szabó , which he completed in 1940 with a diploma with the grade one. After that, during the Second World War , he was employed at the Main Office of Warship Construction, Department U-Boats of the High Command of the Navy in Kiel until the end of the war. In 1945 he became a British prisoner of war, from which he was released in 1948. His path then led him back to the TH Berlin, where he earned his doctorate in 1951 as a scientific assistant at the chair for mechanics with distinction.

Habilitation and private sector

As chief engineer, Reckling stayed with the chair for two years until he switched to the Experimental Institute for Hydraulic Engineering and Shipbuilding in Berlin in 1953 , where he qualified as a professor in 1955 in the field of "Theory of Plasticity". The Friedrich Kocks company in Düsseldorf noticed him and offered him a position as development manager, which he took up that same year. But Reckling did not last long in this position either. Professor Georg Schnadel , at that time honorary professor at the University of Hamburg and chairman of Germanischer Lloyd, induced him to move his field of activity to Hamburg . At the Germanischer LLoyd, Reckling quickly built up an efficient research and development department for shipbuilding and at the same time gave lectures at the Faculty of Mathematics and Natural Sciences at the University of Hamburg.

Research and Teaching

In 1957 Reckling accepted the call to full professor at his home university in Berlin, where he took over the chair at the Faculty of Mechanics. As dean of the faculty, in addition to his lectures, he primarily devoted himself to research in the field of the plasticity of metallic structures and the safety concepts of nuclear-powered merchant ships with the theoretical questions of ship collisions. His publications on this research are still considered standard works today and were also included in the classification criteria of Germanischer Lloyd. The Germanic Lloyd was the first classification society in the world to introduce a collision class symbol .

After his retirement, Reckling moved near Hamburg, where he suddenly and unexpectedly died on October 24, 1986.

Fonts

  • Reckling. KA: The instability of thin rectangular plates in the plastic area Berlin, Techn. Univ., Habil.-Schr., 1955
  • Reckling, KA: Propulsion and vibration tests for 21,000 t tank motor ship : Contract No. S 42 and S 55; Research Institute for Hydraulic Engineering and Shipbuilding Berlin; 1955
  • Reckling, K.-A .: On the theory of plate buckling in plastic materials. In: Ingenieur-Archiv 28 (1959), issue 1, pp. 263-276.
  • Reckling, K.-A .: Mechanics. Vol. I-III. Braunschweig / Wiesbaden 1968–1970.
  • Reckling, K.-A .: The level state of stress in plastic beam bending . In: From the theory and practice of engineering: mathematics, mechanics, construction. Festschrift for the 65th birthday of István Szabó, ed. v. Rudolf Trostel. Ernst & Sohn, Berlin 1971, pp. 39–46, ISBN 3-433-00579-6 .

literature

  • Eike Lehmann (Ed.): 100 Years of Shipbuilding Society 2: Biographies on the history of shipbuilding. In: Yearbook of the Shipbuilding Society 1998 , p. 347. (Biography)
  • Wernigeröder Zeitung , 1987, no. 1.

Individual evidence

  1. ↑ a b c d e Lehmann, Eike: 100 Years of Shipbuilding Society. Biographies on the history of shipbuilding. Yearbook of the Shipbuilding Society; Suppl. 2. Berlin: Springer 1999, p. 347.
  2. ^ Karl-Eugen Kurrer :  Szabó, István. In: New German Biography (NDB). Volume 25, Duncker & Humblot, Berlin 2013, ISBN 978-3-428-11206-7 , pp. 742 f. ( Digitized version ).
  3. ^ Theory of plasticity and its application to strength problems. Springer-Verlag, 1967
  4. ↑ Contribution of Elasto and Plastomechanics to the Investigation of Ship Collisions Yearbook of the Shipbuilding Society , 70th volume. Springer Verlag, Berlin 1976
personal data
SURNAME Reckling, Karl-August
BRIEF DESCRIPTION German engineer and university professor
DATE OF BIRTH March 4, 1915
PLACE OF BIRTH Kiel
DATE OF DEATH October 24, 1986
Place of death Hamburg