ABSTRACT

The objective of this chapter is to derive the problem of elastoplastic modeling of an orthotropic boron-aluminum fiber-reinforced composite thick-walled rotating cylinder subjected to a temperature gradient by using Seth’s transition and generalized strain measure theory. The combined effects of temperature and angular speed have been presented numerically and graphically. Seth’s transition theory does not require the assumptions: the yield criterion, the incompressibility conditions, the deformation is small, etc., and thus solves a more general problem. This theory utilizes the concept of generalized strain measure and asymptotic solution at the turning points of the differential equations defining the deformed field. It is seen that cylinders having smaller radii ratios require higher angular speed for yielding as compared to cylinders having higher radii ratios. With the inclusion of thermal effects, the angular speed increased for initial yielding to a smaller radii ratio but for the fully plastic state, the angular speed is the same. It is observed that the maximum circumferential stress occurs at the internal surface for 222both transitional and fully plastic state at any temperature and angular speed.