Abstract
Impression creep of a flat-ended cylindrical punch pushed into a viscous layer overlaid on a rigid substrate is analyzed. The method developed here permits us to relate the impression velocity to the punching stress in terms of an auxiliary function, which represents the solution of a set of Fredholm integral equations with a continuous symmetrical kernel. By a series of numerical analysis, the influence of the boundary conditions and the effect of the thickness of the layer on the impression velocity are obtained. For infinite thickness (i.e., h/a →∞, where h is the thickness of the layer and a is the radius of the punch), the impression creep is independent of the stick or slip boundary condition at the indenter/layer interface. For finite thickness such as h/a = 20, the boundary conditions have about 5% effect on the impression velocity. For a thin film, the impressing velocity is very sensitive to the boundary conditions. In fact it suggests a possible experimental way to detect debonding at the interface between the thin film and the substrate.
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References
S.N.G. Chu and J.C.M. Li, J. Mater. Sci. 12, 2200 (1977).
H.Y. Yu and J.C.M. Li, J. Mater. Sci. 12, 2214 (1977).
Chiang and J.C.M. Li, Polymer 35(19), 4013 (1994).
P.J. Leider and R.B. Bird, Ind. Eng. Chem. Fundam. 13, 336, 342 (1974).
R.B. Bird, P.J. Dotson, and N.L. Johnson, J. Non-Newtonian Fluid Mech. 7, 213 (1980).
H.T. Pham and E.A. Meinecke, J. Appl. Polym. Sci. 53, 257 (1994).
H.M. Laun and G. Hirsch, Rheol. Acta 28, 267 (1989).
J. Meissner and J. Hostettler, Rheol. Acta 33, 1 (1994).
Y. Mochimaru, J. Non-Newtonian Fluid Mech. 9, 157 (1981).
P.O. Brum and J. Vorwerk, Rheol. Acta 32, 380 (1993).
Fuqian Yang and J.C.M. Li, J. Non-Cryst. Solids 212, 126-135 (1997).
H. Chen and J.C.M. Li, in Micromechanics of Advanced Materials, edited by S.N.G. Chu, P.K. Llaw, R.J. Arsenault, K. Sadananda, K.S. Chan, W.W. Gerberich, C.C. Chau, and T.M. Kung (TMS, Warrendale, PA, 1995), pp. 367-371.
L.N.G. Filon, Philos. Trans. A 21, 63 (1903).
J.R. Scott, Trans. Inst. Rubber Ind. 7, 169 (1931).
S. Chatraei, C.W. Macosko, and H.H. Winter, J. Rheol. 34, 433 (1981).
R.E. Johnson, J. Eng. Math. 18, 105 (1984).
Brindley, Davies, and Walters, J. Non-Newtonian Fluid Mech. 1, 19 (1976).
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Chen, H., Li, J.C.M. Impression creep of a viscous layer. Journal of Materials Research 16, 2709–2715 (2001). https://doi.org/10.1557/JMR.2001.0370
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DOI: https://doi.org/10.1557/JMR.2001.0370