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Fracture Process Control For A Peel-Apart Imaging Film

Published online by Cambridge University Press:  15 February 2011

H.-C. Choi
Affiliation:
Polaroid Corporation, W4-4, 1265 Main St., Waltham, MA 02154
A. Kniazzeh
Affiliation:
Polaroid Corporation, W4-4, 1265 Main St., Waltham, MA 02154
F. Habbal
Affiliation:
Polaroid Corporation, W4-4, 1265 Main St., Waltham, MA 02154
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Abstract

Peeling delamination and image-layer fracture of a multilayer imaging film is analyzed by a simple beam approximation. Criteria for propagation of the delamination cracks and tensile failure of the imaging layer are established. The critical role of substrate strain in controlling tensile strain in the imaging layer is explored. For the case of a thin imaging layer with a fracture strain below a critical level, image layer fracture occurs while the leading-edge delaminations length is comparable to the layer thickness. Experimental Helios film image quality is optimized at a small level of substrate tensile strain where delamination length at leading and trailing edges of small holes is balanced and small and where hole size is minimized.

Type
Research Article
Copyright
Copyright © Materials Research Society 1996

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References

1. Suo, Z. and Hutchinson, J.W., Int. J. Fracture. 43, p. 118 (1990).Google Scholar
2. Aravas, N., Kim, K.-S. and Loukis, M.J., Mat. Sci. and Eng. A107, p. 159168 (1989).Google Scholar
3. He, M.Y. and Hutchinson, J.W., J. Appl. Mech. 56, p. 270278 (1989).Google Scholar
4. Wang, T.C., Shih, C.F. and Suo, Z., Int. J. Solids Structures 29, p. 327344 (1992).Google Scholar
5. Broek, D., Elementary Engineering Fracture Mechanics, Nijhoff, Boston, 1986.Google Scholar
6. Freund, L.B., Int. J. Solids Structures 14, p. 241250 (1978).Google Scholar
7. Thouless, M.D., Evans, A.G., Ashby, M.F. and Hutchinson, J.W., Acts metall. 35, p. 13331341 (1987).Google Scholar