A Teaching Essay on Residual Stresses and Eigenstrains

Residual stresses are an important subject in materials science and engineering that has implications across disciplines, from quantum dots to human teeth, from aeroengines to automotive surface finishing. Although a number of monographs exist, no resource is available in the form of a book to serve as a good basis for teaching the fundamentals. A Teaching Essay on Residual Stresses and Eigenstrains introduces eigenstrain methods as a powerful unified approach to residual stress modeling, measurement, and management. Starting with simple residual stress states, the key relationships are elucidated between deformation processes, inelastic strains (eigenstrains) these may introduce, and the resulting residual stress states. This book is written not only for the materials scientist, mechanical engineer, and student seeking to appreciate the origins of residual stress, but also for the more mature researcher and industrial engineer looking to improve their understanding of the eigenstrain approach to describing residual stress. - Provides a unified basis for understanding the fundamentals of residual stress origins and consequences - Introduces a classification of the most important residual stress states and their efficient description, as well as discussing measurement approaches, their limitations, and uses - Approaches the nature and application of eigenstrain methods in a systematic way to describe residual stress fields

Professor Alexander Korsunsky is a world-leader in mechanical microscopy and rich tomography of materials systems and structures for the optimisation of design, durability and performance. He heads the Multi-Beam Laboratory for Engineering Microscopy (MBLEM) in the University of Oxford, and the Centre for In situ Processing Science (CIPS) in the Research Complex at Harwell Oxford. He consults Rolls-Royce plc on matters of residual stress and structural integrity, and is Editor-in-Chief of Materials & Design. In the last two decades, Alexander Korsunsky has been the most active proponent of eigenstrain theory for the analysis of inelastic deformation and residual stresses in materials and components. He teaches widely across the world, and each year gives several keynote and plenary lectures at major international conferences on engineering and materials. The broader context of Prof Korsunsky's research interests concern improving the understanding of integrity and reliability of engineered and natural structures and systems, from high-performance metallic alloys to polycrystalline ceramics to natural hard tissues, such as human dentin and seashell nacre. He has co-authored books on fracture mechanics and elasticity and has published over 300 papers in scholarly periodicals on subjects ranging from multi-modal microscopy, neutron and synchrotron X-ray analysis, contact mechanics and structural integrity to micro-cantilever bio-sensors, size effects, and scaling transitions. Prof Korsunsky plays a leading role in the development of large-scale research facilities in the UK and Europe. He has chaired the Science Advisory Committee at Diamond Light Source, and is member of UK delegation to ESRF Council. His activities expand the range of applications of large-scale science to problems in real engineering practice.Prof Korsunsky's research has received support from EPSRC and STFC (major UK Research Councils), the European Commission, the Royal Society, Royal Academy of Engineering (RAEng), CNRS (France), DFG (Germany), NRF (South Africa), and other international research foundations, as well as industrial partners, such as Rolls-Royce, Oxford Instruments, and Tescan-Orsay.