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Information × Registration Number 0122U001889, ( 0223U001112  ) R & D request Title The latest methods of diagnosing operationally degraded structural elements Head Skalskyi Valentyn R., Доктор технічних наук Registration Date 21-02-2022 Organization Physico-Mechanical Institute named after GV Karpenko of the National Academy of Sciences of Ukraine popup.description1 Development of methods of control and diagnosis of structural elements by speckle-metrology methods to establish relationships between geometric parameters of subsurface (hidden) defects (inclusions, cracks, notches), parameters of cyclic loading (stress, frequency, number of cycles) and local deformation caused by it; development of methods and improvement of technical means for diagnosing the state of ferromagnetic products and structural elements of long-term operation by amplitude, time and frequency parameters of the magnetoelastic acoustic emission signal, which will detect their local degradation without additional mechanical effects on ferromagnetic materials; development of methods of statistical processing of vibration signals based on the analysis of their structure and substantiation of new diagnostic features to detect defects in the early stages of development, which will ensure trouble-free operation of structural elements and prevent premature failure; establishing the features of electrochemical corrosion, the mechanism of flooding the steels of gas pipelines from the inner surface of the pipes and the loss of their resistance to brittle fracture and hydrogen cracking, taking into account the state of the gas transmission network of Ukraine. popup.nrat_date 2024-12-09 Close