Presented are results of photoelastic study on the stress-strain state of some critical parts and components of hydropower equipment such as the distributor (manifold) of a Pelten turbine, threaded studs for large pressure vessels and turbine cover, welded joint between blades and the rim of a Francis turbine weakened by cracks. Stress-intensity factors depending on the shape, position, size, and the interaction of cracks are obtained. Formulas based on the experimental results are proposed.
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Translated from Gidrotekhnicheskoe Stroitel’svo, No. 1, January 2017, pp. 36 – 45.
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Migurenko, V.R., Mel’nikov, B.E., Éigenson, S.N. et al. Studying the Crack Resistance of Some Parts of Hydropower Equipment. Power Technol Eng 51, 143–150 (2017). https://doi.org/10.1007/s10749-017-0800-5
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DOI: https://doi.org/10.1007/s10749-017-0800-5