RELIABILITY ANALYSIS OF THE SHAFT SUBJECTED TO FLUCTUATING LOADS UNDER TORSION AND BENDING MOMENTS WHEN SHEAR STRESS FOLLOWS EXPONENTIAL DISTRIBUTION

The reliability of shafts subjected to fluctuating loads is essential for ensuring the safe and efficient operation of rotating machinery in various engineering applications, including automotive, aerospace, and industrial systems. Accurate reliability assessments are crucial to preventing failures and extending the lifespan of mechanical components. This study examines the reliability analysis of shafts subjected to combined torsional and bending moments, which create complex stress states that significantly affect shaft performance and failure behaviour. A statistical model is considered since the shear stress generated is random in nature. Analytical expressions for reliability are derived by changing the parameters twisting moment, bending moment, and shaft diameter.