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Постійне посилання на розділhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/35393
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Документ Influence of the element type on the accuracy of creep-damage predictions in thin-walled structures(Cracow University of Technology, 2001) Naumenko, Konstantin; Altenbach, Holm; Huang, Chunxiao; Burlayenko, Vyacheslav. N.Based on the continuum creep-damage mechanics and the finite element analysis the long-term strength in thin-walled structures is estimated using the solid and the shell type finite elements available in ANSYS code. For this purpose the material model with a scalar damage parameter is incorporated into the ANSYS code with the help of a user defined material subroutine. The results based on the first order shear deformation beam equations are compared with the results of the finite element plane stress simulations. It is demonstrated that the shear correction factor and the distribution function of the transverse shear stress have to be modified within time-step calculations. For a rectangular plate in bending finite element analysis is performed based on the shell and the solid type finite elements. The differences in the edge-zone stress redistributions in the shell and the solid type models as well as the influence of boundary layer solutions on the long-term predictions are illustrated.Документ Influence of skin/core debonding on free vibration behavior of foam and honeycomb cored sandwich plates(Lublin University of Technology, Poland, 2008) Burlayenko, Vyacheslav. N.; Sadowski, TomaszThe dynamic behavior of partially debonded at the skin/core interface sandwich plates with flexible cores is studied. The commercial finite element code ABAQUS is used to calculate natural frequencies and mode shapes of the debonded sandwich plates. The effects of debonding size, debonding location and number of debonding on the modal parameters of damaged sandwich plates with various boundary conditions are investigated. The results of dynamic analysis illustrated that can be useful for analyzing practical problems related to the non-destructive damage detection of debonded sandwich plates.