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Overview"This book describes the theory and practice of the Hole-Drilling Method for measuring residual stresses in engineering components. Such measurements are important because residual stresses have a ""hidden"" character because they exist locked-in within a material, independent of any external load. These stresses are typically created during component manufacture, for example, during welding, casting, or forming. Because of their hidden nature, residual stresses are difficult to measure and consequently are often ignored. However, they directly add to loading stresses and can cause catastrophic failure if not properly included during engineering design. Thus, there is an urgent need to be able to identify and measure residual stresses conveniently and reliably. The Hole-Drilling Method provides an adaptable and well-proven method for measuring residual stresses in a wide range of materials and component types. It is convenient to use and gives reliable results. Because of the hidden nature of residual stresses, the measurement method must necessarily be indirect, thus, additional care and conceptual understanding are necessary to achieve successful results. This book provides a practical introduction to the Hole-Drilling Method, starting from its historical roots and going on to focus on its modern practice. The various chapters describe the nature of residual stresses, the principle of hole-drilling measurements, procedures and guidance on how to make successful measurements, and effective mathematical procedures for stress computation and analysis. The book is intended for practitioners who need to make residual stress measurements either occasionally or routinely, for practicing engineers, for researchers, and for graduate engineering and science students." Full Product DetailsAuthor: Gary S. Schajer , Philip S. Whitehead , Kristin B. ZimmermanPublisher: Morgan & Claypool Publishers Imprint: Morgan & Claypool Publishers Dimensions: Width: 19.10cm , Height: 1.00cm , Length: 23.50cm Weight: 0.525kg ISBN: 9781681732664ISBN 10: 1681732661 Pages: 186 Publication Date: 30 January 2018 Audience: General/trade , General Format: Paperback Publisher's Status: Active Availability: Manufactured on demand We will order this item for you from a manufactured on demand supplier. Table of ContentsPreface Nature and Source of Residual Stresses Relaxation Type Residual Stress Measurement Methods Hole-Drilling Method Concept and Development Strain Gauge Technique: Method Description Stress Computations Example Practical Procedures and Results Optical Techniques Authors' Biographies IndexReviewsAuthor InformationGary S. Schajer is a Professor in the Department of Mechanical Engineering at the University of British Columbia, Vancouver, Canada. He has extensive experience with residual stress measurements, notably the hole-drilling method using strain gauges, Electronic Speckle Pattern Interferometry (ESPI), and Digital Image Correlation (DIC). Prof. Schajer has published extensively on residual stress and related topics and recently edited the reference book Practical Residual Stress Measurement Methods. He is a member of ASTM committee E28.13 on residual stress measurement and has been responsible for three major revisions of ASTM E837 Standard Test Method for Hole-Drilling Residual Stress Measurements. Tab Content 6Author Website:Countries AvailableAll regions |