Summary
Through the principle of total potential energy the equilibrium equations and related boundary conditions for buckling analysis of pretwisted laminated columns are derived and solved analytically. It is shown that the coupling between bending and stretching actions has a significant effect on the critical loads —the critical loads increase as the coupling term increases. Numerical results for pinned-pinned composite columns with square cross sections are computed and the effects of natural twist and bending-stretching coupling on the buckling loads are investigated.
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Tabarrok, B., Tong, L. Buckling analysis of pretwisted composite columns. Acta Mechanica 93, 63–71 (1992). https://doi.org/10.1007/BF01182573
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DOI: https://doi.org/10.1007/BF01182573