A number of issues related with the modeling, vibration and stability of anisotropic pretwisted beams rotating with constant angular speed about their longitudinal body-axis fixed in the inertial space is presented. The analysis is carried out in the framework of a refined theory of thin-walled anisotropic composite beams which incorporates a number of non-classical features such as the transverse-shear and the primary and secondary warping. Special attention is paid to the influence played by the spinning speed, pretwist angle, axial compressive load and symmetry/non-symmetry of the beam cross-section on natural frequencies and instability of the spinning structural system. Numerical illustrations are presented and pertinent conclusions are outlined.

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