Abstract

'Destructive' testing methods, also called 'relaxation' methods, are commonly used to evaluate residual stresses in a wide range of engineering components. The versatility and reliability of these methods very frequently make them the preferred choice over nondestructive methods, notwithstanding any damage done to the specimen. There are many different residual stress measurement methods and variations of methods available to suit a wide range of measurement objectives and specimen types. The development of modern computational tools and of high-precision machining and measurement techniques has greatly expanded the scope and precision of the available methods for residual stress evaluation. Several prominent residual stress measurement methods, both long established and recently introduced, are described and compared in this article.

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