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Experimental Stress Analysis by U. C. Jindal

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7

Rotational Stresses

7.1 INTRODUCTION

High centrifugal forces are developed in machine components rotating at a high angular speed of the order of 100 to 500 rps. High centrifugal force produces high hoop and radial stresses in machine components such as rotors and blades of steam and gas turbines. It is almost necessary to analyse these stresses in such components because these are subjected to fatigue loading and creep strain. Many a times a component fails due to crack developed by fatigue and creep during operation. In this chapter we will analyse hoop and radial stresses in components like thin disc, long cylinder, or a disc of uniform strength rotating at high angular speeds.

7.2 ROTATING RING

Consider a ring of mean radius R, rotating ...

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