Measurement of Residual Stresses in a Cylinder : 1 st Report, Theory for a Short Specimen Cut Off from a Long Cylinder

概要

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The Sachs boring-out method is used for determining the axially symmetrical residual stresses in circular cylinders. However, when a specimen cut off from a long cylinder (solid or hollow) is too short, the above method will not be satisfactory, owing to the end effect of the specimen, to estimate the residual stresses in the original cylinder. Since it is usually accepted that dimensional changes caused by any relaxation of stresses are purely elastic, the present author analyzes the whole process of measurements on purely elastic theory and gives a method determining residual stresses in the original cylinder from the experimental data for a specimen with any arbitrary length.
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