PSI - Issue 28

Vasilii Gorokhov et al. / Procedia Structural Integrity 28 (2020) 1416–1425 Author name / Structural Integrity Procedia 00 (2019) 000–000

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The verification of the proposed models and the obtained material functions is carried out by restoring the original strain curves based on numerical modeling. A numerical study of the stress-strain state of a bellows fragment made of a heat-resistant alloy under conditions of high-temperature heating, the action of internal pressure and subsequent exposure to loading has been carried out. A numerical study of the process of deformation and fracture of a spherical shell is performed which illustrates the effects of brittle fracture of a material as a result of the development of creep deformations. Acknowledgements The methodology was developed with the financial support of a grant from the Government of the Russian Federation (Contract № 14.Y26.31.0031) numerical studies were carried out with the financial support of the Ministry of Science and Higher Education of the Russian Federation (task 0729-2020-0054). 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