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In-Situ Observations on Crack Propagation Along Polymer/Glass Interfaces.

Published online by Cambridge University Press:  01 February 2011

W.P. Vellinga ,
R. Timmerman ,
R. van Tijum  and
J.Th.M. De Hosson
W.P. Vellinga
Affiliation:
Materials Science Centre, University of Groningen Nijenborgh4, 9747 AG, Groningen, the Netherlands
R. Timmerman
Affiliation:
Materials Science Centre, University of Groningen Nijenborgh4, 9747 AG, Groningen, the Netherlands
R. van Tijum
Affiliation:
Materials Science Centre, University of Groningen Nijenborgh4, 9747 AG, Groningen, the Netherlands
J.Th.M. De Hosson
Affiliation:
Materials Science Centre, University of Groningen Nijenborgh4, 9747 AG, Groningen, the Netherlands
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Abstract

The propagation of crack fronts along a PET-glass interface is illustrated. The experimental set-up consists of an Asymmetric Double Cantilever Beam in an optical microscope. Image processing techniques used to isolate the crack fronts are discussed in some detail. The fronts are found to propagate inhomogeneously in space and time, in forward bursts that spread laterally along the front for some distance. In some cases the forward movement of a crack can be almost entirely due to the lateral movement of forward steps (analogous to “kinks”) along the crack front.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 875: Symposium O – Thin Films - Stresses and Mechanical Properties XI , 2005 , O10.3
Copyright
Copyright © Materials Research Society 2005

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References

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