Summary
A special perturbation method is employed to demonstrate how the non-singular stress fields associated with the Taylor-series expansions of a pair of Westergaard type stress functionsZ(z) andY(z) will influence the configuration of the isochromatic fringe loops in the vicinity of static crack tips.
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University of Maryland, Photomechanics Laboratory, private Communication.
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Rossmanith, H.P. Appearance aspects of isochromatic mode-1 crack tip fringe loops. Acta Mechanica 47, 53–64 (1983). https://doi.org/10.1007/BF01176500
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DOI: https://doi.org/10.1007/BF01176500