TY - JOUR PB - Elsevier TI - Loss of ellipticity in the combined helical, axial and radial elastic deformations of a fibre-reinforced circular cylindrical tube SP - 99 EP - 108 JF - International Journal of Solids and Structures A1 - El Hamdaoui, Mustapha A1 - Merodio, José A1 - Ogden, Ray W. UR - https://eprints.gla.ac.uk/104646/ ID - enlighten104646 AV - none N2 - In this paper we consider theoretically the finite deformation of a circular cylindrical tube of a transversely isotropic elastic material, specifically the combined axial stretch, inflation and helical shear deformation, with particular reference to the failure of ellipticity. For a simple form of strain-energy function specific examples involving axial and radial directions of transverse isotropy are then considered, leading to different predictions of the onset of ellipticity failure. Y1 - 2015/06/15/ VL - 63 SN - 0020-7683 ER -