Abstract

The non-homogeneity is assumed due to variation of modulus of compression. It has seen hat in the presence of temperature, a cylinder made of non-homogeneous material k<0 Non-homogeneity is less at internal surface than at outer surface) require high pressure to ecome fully plastic as is required for initial yielding and this pressure goes on increasing ith the increases in temperature, showing that a cylinder made of non-homogeneous aterial k<0 is on the safer side of design. For homogeneous case, it has been observed that he circumferential stress has maximum value at the external surface of the cylinder made of ncompressible material as compared to compressible material. For Homogeneous case, with ffects of temperature reduces the stresses at the external surface of the cylinder in omparison to pressure effects only. Strain rates are found to be maximum at the internal urface of the cylinder made of compressible material and they decrease with the radius. ith the introduction of temperature effect, the creep rates have higher values at the internal urface but lesser values at the external surface as compare to a cylinder subjected to ressure only.