Vol.25, No.1, 2025, pp. 106–110
https://doi.org/10.69644/ivk-2025-01-0106 

Creep response is investigated in an anisotropic cylinder under plane stress condition using constitutive equations of anisotropic creep theory and Sherby’s law, on a thick-walled cylinder of orthotropic material under constant internal pressure. Radial and tangential stress distribution in the cylinder have been calculated and compared for two different cases of anisotropy with that of an isotropic material. It is concluded that anisotropy leads to nominal variation in stress distribution in the thick-walled cylinder under plane stress condition. The study, however, reveals that under plane stress condition, isotropic materials show lesser creep response than anisotropic material and are found to be better from the engineering design point of view.

Keywords: • cylinder • anisotropic material • constant pressure • creep analysis • plane stress