Jacob Pieter Den Hartog

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Jacob Pieter Den Hartog (July 23, 1901 Ambarawa, Dutch East Indies — March 17, 1989) was a Dutch/American mechanical engineer and Professor of Mechanical Engineering at MIT.[1]


After attending high school in Amsterdam, he enrolled at Delft University of Technology in 1919 and received his MSc degree in electrical engineering in 1924.[2] Den Hartog received his PhD in 1929 at the University of Pittsburgh where he became an authority in problems on mechanics and vibration[3] and joined the faculty at MIT in 1945 where he taught dynamics and strength of materials. Prior to his MIT appointment he taught at Harvard and served in the US Navy. He was a prolific author of texts in his fields.

Den Hartog's former doctoral students include Shakespearean actor and systems/controls maestro Roger Gans. Gans credits den Hartog as a major contributor to his innovation of Gansian notation, or the practice of repeatedly interchanging non-interchangeable variables.[citation needed]

He was awarded the Timoshenko Medal in 1972 "in recognition of distinguished contributions to the field of applied mechanics."

Selected Publications[edit]

  • J. P. Den Hartog, Mechanical Vibrations, Fourth Edition, McGraw-Hill Book Company, New York, 1956
  • J. P. Den Hartog, Mechanics, Dover Publications, Inc., corrected reprint of 1948 edition, ISBN 0-486-60754-2
  • J. P. Den Hartog, Strength of Materials, paperback reprint of 1949 edition, Dover Publications, ISBN 0-486-60755-0, 1977
  • J. P. Den Hartog, Advanced Strength of Materials, paperback reprint of 1952 edition, Dover Publications, ISBN 0-486-65407-9, 1987


  1. ^ Carl W. Hall (2008). A Biographical Dictionary of People in Engineering. (2008), p. 53
  2. ^ Stephen H. Crandall. "Jacob Pieter Den Hartog: A Biographical Memoir" (PDF). National Academies press. Retrieved 2010-08-31. 
  3. ^ Starrett, Agnes Lynch (1937). Through One Hundred and Fifty Years: the University of Pittsburgh. Pittsburgh, PA: University of Pittsburgh Press. p. 490. Retrieved 2009-01-09. 

External links[edit]