Abstract
The characteristic features of a methodological approach to and practical application of the experimental and design method of determining considerably nonhomogeneous residual stress fields in flat components with the help of cutting are provided. This method is based on mathematically processing deformation response fields (strains or displacements), which are generated as a result of cutting components along a straight line. The distribution of the residual stresses is calculated using the solution of the elasticity theory problem about the action of a self-balanced load on the butt end of a rectangular half-infinite band in the Mathieu series. An algorithm and a program are developed for mathematically processing the experimental data about the stress-and-strain state generated after component cutting and registered by the optically-sensitive coating method. The experimental study of a high-gradient residual stress field (with a stress surge) on a flat optical model allows determining the experimentation conditions the meeting of which ensures a sufficiently high accuracy of the test results.
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This work was supported by the Russian Science Foundation, project no. 20-19-00769C.
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Razumovskii, I.A., Usov, S.M. Experimental and Computational Method for Studying Nonhomogeneous Residual Stress Fields in Flat Components. J. Mach. Manuf. Reliab. 52 (Suppl 1), S82–S91 (2023). https://doi.org/10.1134/S1052618823090108
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DOI: https://doi.org/10.1134/S1052618823090108