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TECHNICAL PAPERS

Mode II Edge Delamination of Compressed Thin Films

[+] Author and Article Information
D. S. Balint, J. W. Hutchinson

Division of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138

J. Appl. Mech 68(5), 725-730 (Mar 03, 2001) (6 pages) doi:10.1115/1.1388012 History: Received September 07, 2000; Revised March 03, 2001
Copyright © 2001 by ASME
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References

Yu, H., He, M. Y., and Hutchinson, J. W., 2001, “Edge Effects in Thin Films,” Acta Mater., in print.
Hutchinson,  J. W., and Suo,  Z., 1992, “Mixed Mode Cracking in Layered Materials,” Adv. Appl. Mech., 29, pp. 63–191.
Stringfellow,  R. G., and Freund,  L. B., 1993, “The Effect of Interfacial Friction on the Buckle-Driven Spontaneous Delamination of a Compressed Thin Film,” Int. J. Solids Struct., 30, pp. 1379–1395.
Rice,  J. R., 1968, “Mathematical Analysis in the Mechanics of Fracture,” Fracture, 2, pp. 191–311.
Dundurs, J., 1969, “Elastic Interaction of Dislocations With Inhomogeneities,” Mathematical Theory of Dislocations, ASME, New York, pp. 70–115.
Scott, R. F., 1963, Principles of Soil Mechanics, Addison-Wesley, Reading, MA.
Erdogan, F., and Gupta, G. D., 1972, “On the Numerical Solution of Singular Integral Equations,” Quart. Appl. Math., pp. 525–534.

Figures

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A schematic showing an edge delamination and a buckle delamination and the minimum flaw sizes necessary to achieve steady-state
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A schematic of the superposition scheme
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The coupling of normal and tangential displacements caused by surface roughness
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A plot of the displacement coupling relationship
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Normalized mode II stress intensity factor
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Normalized energy release rate
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Normal stress at the interface for μf=1.0 and σ̄=5.0
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Normalized apparent mode II fracture toughness for R̄=0.5

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