A. Makino et Dv. Nelson, DETERMINATION OF SUBSURFACE DISTRIBUTIONS OF RESIDUAL-STRESSES BY A HOLOGRAPHIC-HOLE DRILLING TECHNIQUE, Journal of engineering materials and technology, 119(1), 1997, pp. 95-103
A method is described for combining incremental hole drilling with hol
ographic interferometry to determine the distribution of in-plane resi
dual stresses as a function of depth below the surface. The computatio
nal foundation of the method is summarized. Results of experiments to
check the ability of the method to determine two different sub-surface
stress distributions are given. Utilizing the same hologram, the feas
ibility of obtaining results at greater depths by drilling a large hol
e directly over a preceding smaller one is demonstrated.