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Information × Registration Number 0226U000135, (0123U100916) , R & D reports Title Development of methods of diagnosis and calculation of degradation parameters of metal materials to determine the residual resource of structural elements popup.stage_title Розроблення методів діагностування і розрахунку параметрів деградації металевих матеріалів для визначення залишкового ресурсу елементів конструкцій Head Dolinska Iryna Ya., Доктор технічних наук Registration Date 05-01-2026 Organization Physico-Mechanical Institute named after GV Karpenko of the National Academy of Sciences of Ukraine popup.description1 Develop methods for diagnosing and determining the residual life of elements of long-term operation structures, taking into account the degradation of their materials and the influence of aggressive environments, as well as apply them to predict the residual life of the barrels of rapid-fire guns and determine the permissible sizes of internal surface defects in them. popup.description2 Using the energy-based approach proposed earlier, computational models and methods have been developed to assess the effect of material degradation on the residual life of oil pipeline pipes, steam turbine blades, and thin-walled layered structural elements operating under steady or time-varying loads, corrosive and aggressive environments, and elevated temperatures. A comprehensive method for determining the residual life of structural elements under long-term static loading, taking material degradation into account, has been developed; it combines mutually adapted acoustic emission and energy-based approaches, enabling a more accurate residual-life assessment when the loading conditions and the initial defect size are unknown. Methodologies for evaluating material degradation parameters using acoustic ultrasonic techniques and magnetoelastic acoustic emission have been proposed. The obtained results make it possible to optimize the periodicity of preventive inspections of critical facilities and thereby prevent unforeseen failures and potential accidents. Product Description popup.authors Yurii I. Kaniuk Yevhen P. Pochapskyi Oleksandr Y. Andreikiv Ihor M. Romanyshyn Iryna Y. Dolinska Natalya P. Melʹnyk-Solovei Petro M. Dolishnyi Bogdan V. Karpiv Bohdan P. Klym Oleh M. Mokryi popup.nrat_date 2026-01-05 Close