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The hole drilling strain gauge method is one of the most used techniques to determine residual stresses. The presence of eccentricity between the centre of the hole and its theoretical position can compromise the accuracy of the method. The present work proposes a method to correct the measured strains in eccentric holes in case of non-uniform residual stresses. Depths where the strains are measured...
Due to its simplicity and low cost, the hole drilling strain gauge method is one of the most popular techniques to determine residual stresses. The Standard ASTM E837-13 distinguish between constant and variable stresses in depth. Each type of measurement has an associated uncertainty. The goal should be the quantification and reduction in its magnitude to be acceptable for the purposes of the measurement...
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