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Information × Registration Number 0214U007629, 0114U000839 , R & D reports Title Development of a methodology for acoustic emission diagnostics fatigue fracture in aircraft aluminum alloys popup.stage_title Head Lyasota Igor, Registration Date 25-12-2014 Organization Karpenko Physico-Mechanical Institute of the National Academy of Science of Ukraine popup.description2 Acoustic emission diagnostics methodology of fatigue fracture of aluminum alloys structure elements are built using complex of investigations that includes metallography, fractography, speckle interferometry, approaches of linear fracture mechanics, analysis of acoustic emission signals etc. Quantitative factors were found to assess fracture initiation and fracture development of aluminum alloys using parameters of acoustic emission elastic waves. It was revealed that early stages of damages accumulation caused acoustic emission signals generation of distinctive amplitude-frequency characteristic for both static and fatigue fracture. The dependences relating amplitude characteristics of registered acoustic emission signals to the area of created microcrack new surfaces were obtained. The diagnostics methodology of actual objects under test was proposed. Product Description popup.authors Долінська Ірина Ярославівна Лясота Ігор Миколайович popup.nrat_date 2020-04-02 Close