# Ronald Rivlin

**Ronald Samuel Rivlin**(1915–4 October 2005 ) was an Americanphysicist ,mathematician , rheologist and a noted expert onrubber ."New York Times" November 25, 2005 "Ronald Rivlin, 90, Expert on Properties of Rubber, Dies"]**Life**Rivlin was born in

London in 1915. He studied physics and mathematics atSt John's College, Cambridge , being awarded aBA in 1937 and aScD in 1952.Rheology Bulletin vol 75, no 1 (2006) page pp 19 & 27] He worked for the General Electric Company, then the UK Ministry of Aircraft Production, then the British Rubber Producers Research Association, which included one sabbatical year at theNational Bureau of Standards , USA."Mathematics and Mechanics of Solids" (2006) vol 11 page 103, M. M. Carroll & M. A. Hayes "In Memory of Ronald S. Rivlin"] In 1953 he took up the post of Professor of Applied Mathematics atBrown University , moving toLehigh University in 1967 to become director of the Center for the Application of Mathematics until his retirement in 1980. He married Violet LoRusso in 1948 (they had a son, John) and became an American citizen in 1955.**Work**His work began with his 1944 observation that "although very little force is required to detach Scotch tape from an adherend, the work expended in doing so is very large". This is from the elastic effects of the adhesive, on which he commented even if "one idealized the adhesive as a perfectly elastic material there appeared to be no body of mathematical theory which would provide a basis for calculations". Existing theories were only on very small deformations, so from 1945 to 1951, Rivlin was one of creators of the modern theory of

**large elastic deformations**, including theory ofNeo-Hookean solid s andMooney-Rivlin solid s."Journal of Elasticity" (2005) 81: 111–113 A. N. Gent "Ronald S. Rivlin"] He also made major contributions to the theory ofnon-Newtonian fluid flow, including in theRivlin-Erickson expansion.**Honours and Awards***

Bingham Medal of the Society of Rheology in 1958.

*Timoshenko Medal of theASME in 1987

*Charles Goodyear Medal of theAmerican Chemical Society 's Rubber Division in 1992.

*von Karman Medal of theAmerican Society of Civil Engineers in 1993

*Member of theNational Academy of Engineering

*Member of theAmerican Academy of Arts and Sciences

*President of the [*http://www.rheology.org/sor/ Society of Rheology*]

*Chairman of the [*http://www.ms.uky.edu/~snp/ Society for Natural Philosophy*]

*Chairman of the US [*http://www7.nationalacademies.org/usnctam/ National Committee for Theoretical and Applied Mechanics*]

*Chairman, Applied Mechanics Division,ASME On 18 April 2008, he was selected to be inducted into the International Rubber Science Hall of Fame (IRSHF) (ceremony on 6 November 2008). [

*http://www.rubber.org/awards/lists/irshf.htm IRSHF*] website of the Rubber Division of theAmerican Chemical Society ] He had previously been asked to speak at the 1972 IRSHF induction of Melvyn Mooney, but misunderstood, thinking he was to be inducted. On being told that candidates had to be deceased, he said "That's too great a price to pay".**External links*** [

*http://genealogy.math.ndsu.nodak.edu/html/id.phtml?id=13687 Ronald Rivlin in Mathematical Genealogy project*]

* [*http://www.rubberconsultants.com/newsletters/articles/Article1.htm Rivlin's contribution to Fracture Mechanics in Rubber*]

* [*http://web.auth.gr/NabarroHartRivlin/images/3.gifA photograph of Ronald Rivlin*] from [*http://web.auth.gr/NabarroHartRivlin/Nabarro-Hart-Rivlin.html Nabarro-Hart*]

* [*http://photos.aip.org/history/Thumbnails/rivlin_ronald_a1.jpgAn early photograph of Ronald Rivlin*] from [*http://photos.aip.org/ AIP*]

* [*http://www.rubber.org/awards/images/irshf_rivlin.jpgphotograph of Rivlin*] from [*http://www.rubber.org/awards/lists/irshf.htm IRSHF*]**References*** TOMAS CARLSSON, FRANK M. LESLIE, "The development of theory for flow and dynamic effects for nematic liquid crystals", Liquid Crystals, V 26, N 9 / September 1, 1999, pp. 1267 - 1280, URL: http://taylorandfrancis.metapress.com/link.asp?id=ekncnam7bkr24tb9

*Wikimedia Foundation.
2010.*

### Look at other dictionaries:

**Rivlin**— ( he. ריבלין) may refer to:* Alice Rivlin (b. 1931), American economist * Hillel Rivlin (1758 1838), a Rabbi and student of the Vilna Goan, which revitalized Ashkenazi community in Eretz Yisrael. * Reuven Rivlin (b. 1939), Israeli politician *… … Wikipedia**Rivlin**— ist der Familienname folgender Personen: Alice Rivlin (* 1931), US amerikanische Wirtschaftsmanagerin und Regierungsbeamte Eliezer Rivlin (* 1942), israelischer Jurist Reuven Rivlin (* 1939), israelischer Jurist und Politiker Ronald Rivlin… … Deutsch Wikipedia**Mooney–Rivlin solid**— Continuum mechanics … Wikipedia**Mooney-Rivlin solid**— In continuum mechanics, a Mooney Rivlin solid is a generalization of the Neo Hookean solid model, where the strain energy W is a linear combination of two invariants of Finger tensor mathbf{B}::W = C {10} (overline{I} 1 3) + C {01} (overline{I} 2 … Wikipedia**Teorema de Rivlin-Ericksen**— El teorema de Rivlin Ericksen (1955) se debe fundamentalmente a Ronald Rivlin y establece una limitación importante a la ecuación constitutiva de un sólido deformable isótropo y objetivo. Contenido 1 Enunciado del teorema 2 Sólidos elásticos… … Wikipedia Español**Neo-Hookean solid**— Continuum mechanics … Wikipedia**Hyperelastic material**— A hyperelastic or Green elastic material is an ideally elastic material for which the stress strain relationship derives from a strain energy density function. The hyperelastic material is a special case of a Cauchy elastic material. For many… … Wikipedia**Yeoh (hyperelastic model)**— The Yeoh hyperelastic material modelYeoh, O. H., 1993, Some forms of the strain energy function for rubber, Rubber Chemistry and technology, Volume 66, Issue 5, November 1993, Pages 754 771.] is a phenomenological model for the deformation of… … Wikipedia**Invariants of tensors**— In mathematics, in the fields of multilinear algebra and representation theory, invariants of tensors are coefficients of the characteristic polynomial of the tensor A :: det (mathbf{A} lambda mathbf{E}) = 0 The first invariant of an n times; n… … Wikipedia**Lehigh University faculty**— Notable present and past Lehigh University faculty include:*Michael Behe *Maurice Ewing *Donald T. Campbell *Lawrence H. Gipson *Joseph I. Goldstein *John E. Hare *Daniel Chonghan Hong *George Rankine Irwin *Derrick Henry Lehmer *Alexander… … Wikipedia