Charles Inglis (engineer)

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Charles Edward Inglis (pronounced Ingels) (born July 31, 1875 in Worcester , † April 19, 1952 in Southwold ) was a British engineer and civil engineer.

Inglis' pedestrian bridge patent (1916)
An Inglis Bridge over the River Monnow

Inglis was the son of a doctor and studied mathematics and mechanics at Cambridge University ( King's College ) with a bachelor's degree in 1897. He then worked as a civil engineer at John Wolfe-Barry and partners, where he designed bridges for the railroad in the London area. It was here that his preoccupation with the influence of vibrations on buildings and especially bridges began. In 1901 he became a Fellow of King's College, Cambridge after submitting a dissertation ( The Balancing of Engines ), received his Master of Arts degree and became a member of the Institution of Civil Engineers. He went back to university and became assistant to the mechanics and engineering professor Alfred Ewing at King's College. In 1908 he became a lecturer (succeeding Ewing Bertram Hopkinson ). He dealt with a wide variety of areas of mechanical engineering ( vibrations of machines ) and civil engineering - among other things, he was for the university in the council of the municipal waterworks of Cambridge. During World War I he served with the Royal Engineers and invented the Inglis Bridge , a reusable system of steel bridge parts (forerunner of the Bailey Bridge in World War II). In 1919 he became OBE for this . He returned to Cambridge, where he became Professor of Mechanism and Applied Mechanics and Head of Engineering in 1918 (succeeding Hopkinson). In 1943 he retired.

A publication by Inglis in 1913 about the spread of cracks in the panels of ship walls, based on rivet holes, is today considered pioneering work in crack mechanics. He gave a formula for the stress amplification near peaks (with factor , with the crack length, the radius of the crack tip).

From 1923 he worked on behalf of British Railways on the effects of vibrations on bridges caused by locomotives. The results of his research were incorporated into the official British recommendations.

In 1930 he led the investigation into the airship accident involving the R101 . In 1934 he was President of the International Congress on Theoretical and Applied Mechanics in Cambridge.

In 1945 he was ennobled. He was a Fellow of the Royal Society . A building at Cambridge University is named after him. In 1924 he received the Telford Medal and in 1944 the Charles Parsons Medal. In 1929 he received an honorary doctorate from Edinburgh University .

His students included Frank Whittle and James N. Goodier . He had been married since 1901 and had two daughters. In 1941/42 he was President of the Institution of Civil Engineers .

Fonts

  • A Mathematical Treatise on Vibrations in Railway Bridges , Cambridge University Press 1934
  • Applied Mechanics for Engineers , Cambridge University Press 1951

Web links

Individual evidence

  1. ↑ Inglis Stresses in a plate due to the presence of cracks and sharp corners , Trans. Inst. Naval Architects, 1913, pp. 219-230
  2. ↑ A crack from the surface into the material is considered, otherwise the value should be used instead
personal data
SURNAME Inglis, Charles
ALTERNATIVE NAMES Inglis, Charles Edward
BRIEF DESCRIPTION British engineer
DATE OF BIRTH July 31, 1875
PLACE OF BIRTH Worcester
DATE OF DEATH April 19, 1952
Place of death Southwold