Residual-stress determination by single-axis holographic interferometry and hole drilling—Part I: Theory

• DOI: 10.1007/bf02328443
• Publication Date: 2006-02-11T05:52:58Z
• Authors: A. Makino; D. Nelson
• Keywords: 0103 physical sciences; 01 natural sciences

A method is described for the rapid, accurate determination of residual stresses from a holographic interference fringe pattern. The pattern is generated by the displacement field caused by localized relief of residual stresses via the introduction of a small, shallow hole into the surface of a component or test specimen. The theoretical development of the holographic method is summarized. An example is given showing how the method can be applied to a typical experimentally observed fringe pattern to determine principal residual stresses and directions.