The Finite-element Method Part I R. L. Courant [Historical Corner]-G7B

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  • 7/27/2019 The Finite-element Method Part I R. L. Courant [Historical Corner]-G7B

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  • 7/27/2019 The Finite-element Method Part I R. L. Courant [Historical Corner]-G7B

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    400----- o -a----- Figure 2 is the appendix, "Numerical Treatment of the Plane200k~~~~~ ~~~~~~I delnIihfnt lmns 1 a ctdi h is ie eieTorsion Problem for Multiply-Connected Domains," from [1],

    041i" A A WE,Z! asthe "total stiffness" of the column with respect to torsion,1970 1975 Y j9j199 00 05 S fu dxdy, and u is the value of the unknown function, 0.This leads to the minimum value of the functionalFigure 1. Th e annual production of finite-element papers in ' fo.2 2electrical engineering, 1969-2005: (a) INSPEC + D(O) = J +0 + 20S)dxdy with prescribed values on cross-COMPENDEX databases, all publications; (b) INSPEC + section contours. The function u gives the stress in the cross sec-COMPENDEX databases, journal articles; (c) IEEE journal tion of the column by differentiation.articles; (d) TEE journal articles.

    It C U...., '9 P O F AND 21negligible a o n l S=.339 a c- -. 11. A rfined a w t f

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    Figure 2. The appendix, "Numerical Treatment of the Plane Torsion Problem for Multiply-Connected Domains," from [1].IEEE AntennasandPropagationMagazine, 4 N 2 A 200711

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    ture of electrical engineering, as recorded in the INSPEC database.As will be evident from this graph, the rate of publication (i.e., theannual output of articles) has doubled about every four years since1969, although it has slowed somewhat since the turn of the lastdecade.

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    Richard L. CourantRichard (Figure 3) wa s the eldest child of Siegmund and

    Martha Courant. When Richard was nine, his family moved toBreslau. Richard attended school there, entering the K~3nig-Wilhelm Gymnasium. With little previous education, Richardstruggled at school at first, even being "less than satisfactory" atarithmetic. When Richard was fourteen years old, he began to tutorto make enough money to support himself. Soon after this, a trag-edy struck the family when Jakob, Richard's uncle, in severe busi-ness difficulties, committed suicide; shortly after, Siegmund wasdeclared bankrupt. Th e following tw o years must have been timesof extreme difficulty for Richard, attending school and still sup-porting himself tutoring.

    Courant ha d studied at Breslau with two fellow students, OttoToeplitz and Ernst Hellinger. These two, several years older thanCourant and further on with their education, were by this stagestudying at G6ttingen. They wrote to Courant, telling him howexciting it was there, particularly because of Hilbert. In the springof 1907, Courant left Breslau, spent a semester at Zurich, and thenbegan his studies at G6ttingen on November 1, 1907.

    R. L. Courant received his doctorate from the University ofGdttingen in 1910 under David Hilbert. For the next four years, hetaught mathematics at G6ttingen. Then at age 26, his teaching andresearch were interrupted by the onset of World War I. A few yearsafter the war, Courant returned to G6ttingen, where he founded anddirected (from 1922 to 1933) the University's Mathematics Insti-tute. Th e Institute wa s just a name and a group of people until1927, when a building wa s constructed. While at the institute, hewrote a two-volume treatise with D. Hilbert, Methoden der mathe-matischen Physik (1924), later translated into English as Methodsof Mathematical Physics, a work that furthered the evolution ofquantum mechanics.

    Courant was expelled from G6ttingen when the Nazis cameto power in 1933. On January 30, 1933, Hitler came to power, andin March, Courant left Gdttingen for his spring holiday in Arosa inSwitzerland. On May 5, Courant received an official letter tellinghim he was on forced leave. Weyl was made director of the Mathe-matics Institute, and he made every effort to have Courant back.Meanwhile, attempts were made to offer Courant posts elsewhere.Invited to Cambridge in England fo r a one-year visit, he applied forleave (slightly strange that he had to do so, sincc he was already onforced leave). His forced leave wa s changed to ordinary leave, andCourant left for England, going to Ne w York University the fol-lowing year.

    The first few months in New York were difficult. He waspoorly paid, there were no mathematicians of quality on the staff,and the students he taught he found very badly prepared. In 1936,he was offered a professorship at New York University, and giventhe task of building a graduate center. Again, he ha d a mostly suc-cessful collaboration with his students. In 1940-41, he worked on anew book with Herbert Robbins, a young topologist from Harvard.This book wa s "lat is Mathematics? and it records Courant'sviews of mathematics.

    Figure 3. Richard L. Courant,, January 8, 1888, Lublinitz,Prussia, Germany (now Lubliniec, Poland) - January 27, 1972,New Rochelle, New York, USA.Courant suffered a stroke on November 19, 1971, and wastaken to a hospital in New Rochelle, where he died two months

    later.

    References1. R. L. Courant, "Variational Methods for the Solution of Prob-lems of Equilibrium and Vibration," Bulletin of the AmericanMathematicalSociety, 49, 1943, pp. 1-23.2. D. B. Davidson, "General Chair's Report on the 8th Interna-tional Workshop on Finite Elements fo r Microwave Engineering,Stellenbosch, South Africa, May 2006," IEEE Antennas andPropagationMagazine, 48, 4, August 2006, pp. 1 10- 114.3. J. L. Synge, The Hypercircle in Mathematical Physics, Cam-bridge, Cambridge University Press, 1957.4. R. J. Duffin, "Distributed and Lumped Networks," Journal ofMathematicsand Mechanics, 8, 1959, pp. 793-826.5. P. Silvester, "Finite-Element Solution of HomogeneousWaveguide Problems," Alta Frequenza, 38, 1969, pp. 313-317.6. P. L. Arlett, A. K. Bahrani, and 0. C. Zienkiewicz, "Applicationof Finite Elements to the Solution of Helmholtz's Equation," Pro-ceedings of the Institution of Electrical Engineers, 115, 1968, pp.1762-1766.7. Z. J. Cendes and P. Silvester, "Numerical Solution of DielectricLoaded Waveguides. I - Finite-Element Analysis," IEEE Transac-tions on Microwave Theory and Techniques, MITT-1 9, 1971, pp.504-509. '10'

    1IEEE AntennasandPropagationMagazine, 4 N 2 A 200782AlultIXDoM1a1UfIX Ra