Stress analysis of exponentially graded NA-B4C and HCS-MgO pressurised cylinder using Adomian Decomposition Method

In this paper, elastic stress analysis for functionally graded (FG) pressurized cylinder under steady state condition is done by using Adomian Decomposition Method (ADM). The Young's modulus for the functionally graded material (FGM) is differing exponentially along radial direction, but the Poisson ratio is considered to be invariant. The inner and outer surfaces of the pressurized cylinder are formed of metals and ceramics, respectively. The governing equations including stress-strain relation, strain-displacement and Hooke's law are presented under plane strain conditions. The elastic solutions for radial displacement and stresses are obtained by applying ADM and further obtained results are validated with previously published results with another iterative and numerical technique. For practical understating of the work, two material combinations nickel alloy-boron carbide (NA-B4C) and high carbon steel-magnesium oxide (HCS-MgO) are considered for numerical interpretations and results are depicted graphically.