Michael Anthony Crisfield

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Michael Anthony Crisfield, (born July 26, 1942 Wimbledon , † February 19, 2002 London ) was a British engineer.

Life

Crisfield attended Haileybury School, where his mathematical talent was noticed, but where he was also interested in blues and jazz piano, and graduated from Queen's University Belfast with a degree in civil engineering in 1965 . In 1970 Crisfield received his doctorate with a dissertation on the finite element method (FEM) for inclined bridges. He then spent a year in the bridges division of the Ministry of Development of Northern Ireland. In 1971 he joined the bridge construction department of the Transport & Road Research Laboratory (TRRL) in Camberley , where he was promoted to "Individual Merit Deputy Chief Scientific Officer" in 1989 and headed the structural mechanics department. Nevertheless, in the same year he took over the chair for Computational Mechanics ( Computational Fluid Mechanics ) in the Department of Aeronautics at Imperial College London , where he significantly advanced the development of numerical methods of structural mechanics in engineering and, for example, dealt specifically with the mechanical stability of advanced aircraft designs for combat aircraft and the behavior of the lightweight materials and composite materials used there, such as those made of carbon fiber reinforced plastic . He died of cancer at the age of 59.

From a numerical and mathematical perspective, Crisfield made a significant contribution to solving structural-mechanical stability problems early on, for example in the analysis of the penetration of cylinder shells and box girders. While still working for the TRRL, Crisfield published his book on linear FEM in 1986. He saw it as a scientific challenge to treat non-linear cases with the FEM as well, about which he published a two-volume monograph. It was published in 1991 and 1997 and was revised by René de Borst in 2012 and 2014 . Karl-Eugen Kurrer sees in him an outstanding scientist of the "diffusion phase of structural mechanics" (a classification according to Kurrer, which covers the period from about 1975 to today), who set standards and also inspired scientific research after his death. His development of numerical programs for structural mechanics contributed to the fact that virtual testing on the computer was increasingly accepted in engineering.

In the 1970s there were a number of spectacular cases of damage (collapse in some cases still in the construction phase) to steel box girder bridges in England (Milford Haven), Germany and Australia. Crisfield was involved in the Enlightenment (Committee of Alec Merrison , which presented its report in 1973) and the investigation of its stability occupied him until the 1980s. The behavior was not adequately described in the British steel construction standards of the time and had complex causes, an area of ​​application for the FEM techniques for non-linear material behavior developed by Crisfield.

Works

  • Mit RS Puthli: A finite element method applied to the collapse analysis of stiffened box girder diaphragms. In: PJ Dowling, JE Harding, PA Frieze (eds.): Steel Plated Structures. Pp. 311-337. Crosby Lockwood Staples, London 1977.
  • An iterative improvement for non-conforming bending elements. In: International Journal for Numerical Methods in Engineering. Vol. 9, 1975, Issue 3, pp. 641-648.
  • A faster modified Newton-Raphson iteration. In: Computer Methods Applied Mechanical Engineering. Vol. 20, 1979, pp. 261-278.
  • A fast incremental / iterative solution procedure that handles "snap-through". In: Computers & Structures. Vol. 13, 1981, pp. 55-62.
  • Finite Elements and Solution Procedures for Structural Analysis. Volume 1: Linear Analysis. Pineridge Press, Swansea 1986.
  • Non-Linear Finite Element Analysis of Solids and Structures. Volume 1: Essentials. John Wiley & Sons, New York 1991.
  • Non-Linear Finite Element Analysis of Solids and Structures. Volume 2: Advanced Topics. John Wiley & Sons, New York 1997.
    • The second edition was published as: René de Borst, Mike Crisfield, Joris Remmers, Clemens Verhoosel: Non-linear finite element analysis of solids and structures. Wiley, 2012.
    • German edition of the 2nd edition: René de Borst, Mike Crisfield, Joris Remmers, Clemens Verhoosel: Nonlinear finite element analysis of solids and structures. Wiley-VCH, 2014.

literature

Web links

Individual evidence

  1. ^ Professor Michael Anthony Crisfield (1942–2002). (PDF; 51 kB) In: ShellBuckling.com. P. 3 , accessed on April 14, 2019 (English).
  2. ^ A b Glyn Davies: Michael Crisfield. In: Theguardian.com . March 20, 2002, accessed April 14, 2019 .
personal data
SURNAME Crisfield, Michael Anthony
BRIEF DESCRIPTION British applied mathematician and engineer
DATE OF BIRTH July 26, 1942
PLACE OF BIRTH Wimbledon
DATE OF DEATH February 19, 2002
Place of death London