MEASUREMENT OF NON-UNIFORM BI-AXIAL RESIDUAL STRESSES BY THE HOLE DRILLING METHOD |
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| Authors: | R. G. BATHGATE |
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| Affiliation: | The City University, London |
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| Abstract: | The hole drilling method is used to evaluate bi-axial residual stresses varying with depth. Equations with experimentally determined calibration constants, given here for light-alloys, relate residual stresses to strain relaxations as the hole is drilled. Accuracy and limitations are assessed by application to known stress conditions. The method can be used on large structures and in field conditions. |
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