PSI - Issue 37

O.N. Belova et al. / Procedia Structural Integrity 37 (2022) 888–899 Author name / Structural Integrity Procedia 00 (2021) 000 – 000

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is characterized by simplicity and accuracy. It is also shown that the BFGS method has undeniable advantages over the classical over-deterministic method. Acknowledgements The work was supported by Russian Foundation for Basic Research (project 19-01-00631). References Ayatollahi, M.R., Mirsayar, M.M., Dehghany, M., 2011. Experimental determination of stress field parameters in bi-material notches using photoelasticity. Materials & Design 32(10), 4901-4098. Dolgikh, V.S., Stepanova, L.V., 2020. A photoelastic and numeric study of the stress field in the vicinity of two interacting cracks: Stress intensity factors, T-stresses and higher order terms. AIP Conference Proceedings 2216, 020014. Ganesan, V.R., Mullick, S.K., 2008. Digital image processing of photoelastic fringes – a new approach. Experimental techniques 15(5) 41-46. Ham, S.-M., Kwon, T.-H. 2020. 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