MODELLING OF CREEP BEHAVIOUR OF A ROTATING DISC IN THE PRESENCE OF LOAD AND VARIABLE THICKNESS BY USING SETH TRANSITION THEORY
Pankaj Thakur1, Monika Sethi1, Shivdev Shahi2, Satya Bir Singh2, Fadugba Sunday Emmanuel3, Jasmina Lozanović Šajić4
1)Depart. of Math., Faculty of Science and Technol., ICFAI Univ. Baddi,, Solan, India
2)Department of Mathematics, Punjabi University, Patiala, Punjab, India
3)Depart. of Math., Faculty of Science, Ekiti State Univ., Ado Ekiti, Nigeria
4)Univ. of Belgrade, Innov. Centre of the Fac. of Mech. Eng., Serbia
The purpose of this paper is to present study of creep behaviour of a rotating disc in the presence of load and thickness by using Seth’s transition theory. It has been observed that a flat rotating disc made of compressible as well as incompressible material with load E1 = 10, increases the possibility of fracture at the bore. It Is also shown that a rotating disc of incompressible material and thickness that increases radially experiences higher creep rates at the internal surface in comparison to a disc of compressible material. The model proposed in this paper is used in mechanical and electronic devices. They have extensive practical engineering applications such as in steam and gas turbines, turbo generators, flywheel of internal combustion engines, turbojet engines, reciprocating engines, centrifugal compressors and brake discs.
Keywords: creep stress, strain rates, angular speed, load, disc