Viggo Tvergaard

from Wikipedia, the free encyclopedia

Viggo Tvergaard (born April 19, 1943 in Odense ) is a Danish mechanical engineer.

Tvergaard studied civil engineering at the Technical University of Denmark in Lyngby with a degree in 1969 and a doctorate in 1971. He was then adjunct there, lecturer from 1973, lecturer in 1988 and research professor in 1989 and professor from 1994.

1979/80 and 1989 to 1994 he was visiting professor at Brown University , where he was also a frequent visiting scholar. He worked a lot with Alan Needleman at Brown University.

Among other things, he dealt with microscopic models of crack formation (e.g. Gurson-Tvergaard-Needleman model for damage in ductile materials).

In 1998 he received the Koiter Medal of ASME, in 2009 the Euromech Solid Mechanics Prize and in 2017 the Timoshenko Medal . In 2001 he became a member of the National Academy of Engineering for contributions to stability theory and the understanding of failure mechanisms in solids and structures (laudation). In 1999 he became an external member of the Royal Netherlands Academy of Sciences and Fellow of the Institute of Physics . In 1993 he received an honorary doctorate from the Royal Stockholm University of Technology. He is a member of the Danish Academy of Technical Sciences.

Fonts (selection)

  • On localization in ductile materials containing spherical voids, Int. J Fracture, Vol. 18, 1982, pp. 237-252.
  • with Needleman: An analysis of ductile rupture in notched bars, J. Mech. Phys. Solids, Vol. 32, 1984, pp. 461-490.
  • with A. Needleman: Analysis of the cup-cone fracture in a round tensile bar, Acta Metall., Volume 32, 1984, pp. 157-169.
  • On bifurcation and stability under elastic-plastic deformation, in: A. Sawczuk, G. Bianchi (ed.), Plasticity Today, Elsevier 1985, pp. 377-398
  • Effect of plasticity on post-buckling behavior, in: Buckling and Post-Buckling, Four Lectures in Experimental, Numerical and Theoretical Solid Mechanics, Springer, Lecture Notes in Physics, 1987, pp. 143-183
  • with Needleman: An analysis of ductile rupture at a crack tip, J. Mech. Phys. Solids, Vol. 35, 1987, pp. 151-183.
  • Material failure by void growth to coalescence, Advances in Applied Mechanics, Volume 27, 1990, pp. 83-151.

Web links

Individual evidence

  1. ^ National Academy of Engineering
personal data
SURNAME Tvergaard, Viggo
BRIEF DESCRIPTION Danish engineer for mechanics
DATE OF BIRTH April 19, 1943
PLACE OF BIRTH Odense