Summary
The effects of higher-order deformations on natural frequencies and buckling stresses of a thick circular ring with rectangular cross-sections subjected to circumferential tensile and/or compressive stresses are studied. Based on the power series expansion of displacement components, a set of fundamental dynamic equations of a one-dimensional higher-order ring theory is derived through Hamilton's sprinciple. Several sets of truncated approximate theories which can take into account the complete effects of higher-order deformations such as shear deformation and depth change and rotary inertia are applied to solve the eigenvalue problems of a thick circular ring. In order to assure the accuracy of the present theory, convergence properties of the minimum natural frequency and the buckling stress for the flexural and extensional displacement modes of thick rings are examined in detail. It seems that the present approximate theories can predict benchmark data of the natural frequency and buckling stress of thick rings more accurately compared to other existing theories.
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Matsunaga, H. Effects of higher-order deformations on in-plane vibration and stability of thick circular rings. Acta Mechanica 124, 47–61 (1997). https://doi.org/10.1007/BF01213017
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DOI: https://doi.org/10.1007/BF01213017