Hostname: page-component-cd9895bd7-dzt6s Total loading time: 0 Render date: 2024-12-24T01:08:39.545Z Has data issue: false hasContentIssue false
  • English
  • Français

Collisions through liquid films

Published online by Cambridge University Press:  24 October 2008

F. R. Eirich  and
D. Tabor
F. R. Eirich
Affiliation:
Division of TribophysicsCouncil for Scientific and Industrial ResearchAustralia
D. Tabor
Affiliation:
Division of TribophysicsCouncil for Scientific and Industrial ResearchAustralia
Get access Rights & Permissions [Opens in a new window]

Extract

When impact occurs between clean metal surfaces, plastic flow of the metal usually takes place at the points of real contact, so that the pressures developed are as high as the dynamic yield pressure of the metal concerned. Early experiment show that if the surfaces are covered with a thin film of a highly viscous liquid, the pressures developed and transmitted through the liquid film may be sufficiently great to produce plastic deformation of the metal, even though no metallic contact occurs through the film (1). The existence of these high pressures in the liquid layer means that extremely high rates of flow and shear may be developed in the liquid film, and that the energy dissipated in overcoming viscous flow may lead to an appreciable temperature rise in the liquid. Even in much gentler impacts, where plastic deformation of the metal surfaces does not occur, very high pressures, rates of flow and shear, etc., may be developed in the liquid film. These effects are of great interest in any study of collisions through liquids; they are of particular significance in the study of the mechanism of detonation of liquid explosives by impact.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 44 , Issue 4 , October 1948 , pp. 566 - 580
Copyright
Copyright © Cambridge Philosophical Society 1948

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

(1)Bowden, F. P. and Tabor, D.J. Coun. Sci. Industr. Res., Aust., 14 (1941), 152.Google Scholar
(2)Cherry, T. M.Flow and generation of heat in compressed films of viscous liquid. Coun. Sci. Industr. Res., Aust., Tribophysics, A 116, Explosives Report, no. 8 (1945).Google Scholar
(3)Prandtl, L.Zeit. angew. Math. Mech. 3 (1923), 401.CrossRefGoogle Scholar
(4)Nadai, A.J. App. Mech. 6 (1939), A–54, A–62.CrossRefGoogle Scholar
(5)Eirich, F. R. and Tabor, D.Coun. Sci. Industr. Res., Aust., Tribophysics, A 121, Explosives Report, no. 9 (1945).Google Scholar
(6)Hardy, W. B.Proc. Roy. Soc. A, 108 (1925), 1.Google Scholar
(7)Reynolds, O.Philos. Trans. 177 (1886), 157.Google Scholar
(8)Prescott, J.Applied elasticity (London, 1927).Google Scholar
(9)Robertson, A. J. B. and Rideal E. K. Min. Supply, unpublished. See also Semenov, N. N., Chemical Kinetics and Chain Reactions (Oxford, 1935).Google Scholar
(10)Bowden, F. P., Eirich, F. R., Mulcahy, M. F. R., Vines, R. G. and Yoffe, A.Bull. Coun. Sci. Industr. Res., Aust., no. 173 (1943).Google Scholar
(11)Bowden, F. P., Mulcahy, M. F. R., Vines, R. G. and Yoffe, A.Proc. Roy. Soc. A, 188 (1947), 291; A, 188 (1947), 311.Google Scholar