Johannes Weertman
Johannes Weertman (May 11, 1925 – October 13, 2018) was an American materials scientist and geophysicist.
Biography
Born in 1925 in
He was from 1967 to 1991 a consultant for the
Our research areas are the mechanical properties of metals, including fatigue and fracture of metals, the high-temperature creep of crystalline solids, and dislocation theory applied to these phenomena. We are developing dislocation-based solutions of the plastic regions around stressed cracks. These solutions rely on dislocation crack tip shielding and dislocation crack extension force conditions. ... In the area of geophysics, we recently developed a theory for the migration of subglacial lakes under ice sheets and earthquake dislocations moving at a transonic velocity on a fault separating rock of sightly different elastic constants.In the area of geophysics, our primary research area is in the theory of the flow of glaciers and ice sheets.[2]
Awards and honors
- Seligman Crystal of the International Glaciological Society, 1983
- Acta Metallurgica Gold Medal, 1980
- Champion H. Mathewson Gold Medal of the Metallurgical Society of AIME for work on creep and fatigue fracture, 1977
- Guggenheim Fellowship, 1970
- Robert E. Horton Medal, American Geophysical Union, 1962
- Fulbright Fellowship, 1951
- Fellow of Geological Society of America, 1970
- Fellow of the American Physical Society, 1975[4]
- Fellow of the American Geophysical Union, 1982[5]
Selected publications
- with Julia R. Weertman: Elementary dislocation theory, Macmillan 1964, Oxford University Press 1993
- Dislocation based fracture mechanics, World Scientific 1996
- Weertman, J. (1957). "On the sliding of glaciers" (PDF). Journal of Glaciology. 3 (21): 33–38. .
- Weertman, J. (1957). "Steady-state creep through dislocation climb". Journal of Applied Physics. 28 (3): 362–364. .
References
- ^ biographical information from Pamela Kalte et al., eds. American Men and Women of Science, Thomson Gale 2004
- ^ Johannes Weertman, Faculty Directory | Northwestern's McCormick School of Engineering
- ^ Professor Emeritus Johannes Weertman Passes Away
- ^ "APS Fellow Archive". aps.org. Retrieved 2021-11-10.
- ^ "Union Fellows | AGU". www.agu.org. Retrieved 2021-11-10.