Selivanov Y. Methods of holographic interferometry in mechanics of nonhomogeneous thin-walled structures

The target of research is processes of deformation, stress and strain state (SSS) and fracture of nonhomogeneous thin-walled structures under mechanical and thermal loads action, oscillations; methodology of their experimental research, design and diagnostics. The scope of research is approaches and methods based on holographic interferometry (HI). The goal of research is development of theoretical and applied methodology of mentioned structures mechanics tasks solving bases with using of HI and finite elements method (FEM). The methods of researches – the static and non-stationary states were researched with using of HI, quantitative and offered engineer approaches and modernized moire method. The methods of HI were used joint with FEM in research of oscillations and durability at remaining tensions presence. Destruction was probed with the using of HI, strain measurement, acoustic emission and speed filming. Results - the complex of effective approaches and methods is created for static and non-static SSS of thin-walled structures determination, study of their free oscillations and residual stresses, rational distribution of material, diagnostics of basic descriptions of destruction, new information, which characterize the important features of processes of deformation, oscillations and fracture of constructions of the considered class. The implementations were made in DB Pivdenne, Ukrainian NII Technology Shipbuilding, DB of Dneprotyazhmash and AvtoVAZ (Russia). The industry of application is mechanical engineering.