FINITE CREEP DEFORMATION IN THICK-WALLED CIRCULAR CYLINDER WITH VARYING COMPRESSIBILITY UNDER EXTERNAL PRESSURE
Sanjeev Sharma1, Sanehlata Yadav1, Zoran Radaković2
1)Department of Mathematics, Jaypee Institute of Information Technology, Noida, INDIA
2)University of Belgrade, Faculty of Mechanical Engineering, Belgrade, Serbia
Creep stresses have been obtained for thick-walled circular cylinder of compressibility varying radially under external pressure with the help of transition theory using the concept of generalized principal strain measure. This theory simplifies the constitutive equations by prescribing a priory the order of the measure of deformation. Results have been analysed and discussed numerically as well as graphically. From the numerical results, it has been observed that homogeneous material is on the safer side of the design and also highly compressible cylinder made of either homogeneous or non-homogeneous material is also on the safer side of the design.
Keywords: creep, cylinder , pressure , non-homogeneous, thermal