Determination of the non-axisymmetric stress state in the plasticity zone by the hole-drilling method with out-of-plane ESPIстатья

Дата последнего поиска статьи во внешних источниках: 18 сентября 2019 г.

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[1] Determination of the non-axisymmetric stress state in the plasticity zone by the hole-drilling method with out-of-plane espi / A. L. Popov, D. A. Chelyubeev, A. L. Levitin et al. // Engineering Mechanics 2019. 25th International Conference. May 13-16, 2019, Svratka, Czech Republic. Book of Full Texts. Ed. by Igor Zolotarev and Vojtech Radolf. — Institute of Thermomechanics of the Czech Academy of Sciences, Prague, 2019. — P. 295–298. http://www.engmech.cz/im/proceedings/show_p/2019/295 The stress state estimates accounting for plasticity are obtained at residual stress evaluation performed by hole-drilling method and out-of-plane ESPI. The plasticity zone in the sample is present prior to the probe hole drilling. The sample is a steel composite disc, assembled by fitting rings on the plug. The initial stress distribution in the composite elastic-ideal plastic disk accounting for the formation of a plastic zone in the covering ring is obtained by the solution of Gadolin in elastoplastic formulation. A simple analytical algorithm to adjust the non-axisymmetric stresses in comparison with the calculation according to the elastic model is developed. The case of probe hole drilling in the area of plastic deformations is considered. [ DOI ]

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