In this unique book, Shchepinov and his colleagues introduce and discuss the development and application of the increasingly important technique; holographic and speckle interferometry employed in the investigation of structure and material deformation and fracture processes. The authors consider the main physical and metrological aspects of interferometry from the deformation analysis viewpoint, emphasizing the need for (and the difficulties in obtaining) high quality and accurate fringe patterns. The advantages and outstanding features of the techniques are discussed in the second part of the book and these are compared with conventional methods of experimental mechanics. The book is illustrated with numerous unique interferograms to demonstrate the various fringe patterns which must be quantitively interpreted to obtain strain and stress values with the required accuracy. All fringe patterns presented are primary sources of the corresponding displacement and strain distributions contained in the book. The results illustrate how holographic and speckle interferometry can be used for development in various scientific and applied subjects in the fields of solid and fracture mechanics. Written specifically for researchers and engineers specializing in the strength of structures and materials, this book will also serve to introduce students to the fundamentals of holographic and speckle interferometry and the way these methods can be applied in experimental mechanics.

This reference tutorial contains modern experimental approaches to analysis of strain-stress distribution based on interference-optical methods of registration of strain or displacement fields, including coherent-optical techniques (holographic interferometry, speckle photography, electronic digital speckle interferometry techniques) and photoelastic methods as well as the shadow optical method of caustic. The book describes the theory, efficient scope of application in the every-day practice and the problems of further development of these techniques. Much attention is paid to new and promising advanced developments in the field of observation and computational methods for study of residual stress, determination of fracture mechanics parameters and material deformation characteristics. The content corresponds to the course of lectures delivered by the author at the N.E. Bauman Moscow State Technical University. It is intended for technical university students, research engineers and postgraduate students who are doing analysis of strain-stress state and strength of structural elements.

The Proceedings contain state-of-the-art reviews and original materials related to up-to-date developments in a wide range of optical control methods. They are devoted in particular to shape, displacement and deformation measurement, strain analysis, mechanical behavior evaluation, inspection and non-destructive testing. Three principal classes of methods are under consideration: speckle photography, holographic interferometry and speckle interferometry. Both the state-of-the-art practices and the actual leading-edge techniques are discussed within a single volume, with reference to theoretical backgrounds common to all methods. Usually, similar information is distributed over many specialised works. The book presents both conceptual and practical aspects: theoretical considerations are fully analysed and applications illustrate the emphasis on many experimental aspects.

The authors realized that there are currently no books in the marketplace that include sufficient solved examples, along with the ability to cover theories of experimental technique, in such a way as to promote self-teaching by the reader. The authors' objective is to allow the reader to review the materials before stepping into a laboratory situation. Chapters are written in a very concise, easily understandable manner and features the inclusion of ample solved equations, designed to test the understanding of featured topics. Chapter topics include: Stress, Strain, and Stress-Strain Relationships; Metal-Foil Resistance Strain Gages; Strain Gage Circuitry, Transducers, and Data Analysis; Photoelasticity; Photoelasticity-Coating Method; Geometric Moiré Techniques in Strain Analysis; Holographic Interferometry; and Computer Data Acquisition and Control Systems. For self-study in Experimental Stress Analysis.

A unified, comprehensive, self-contained treatment of theory, practice, and application, including related coherent optical techniques. Emphasizes quantitative evaluation of holographic interferograms of both opaque and transparent objects, explaining how tools such as the laser and holography are being applied to present-day measurement problems. Applies clear, simple, physical reasoning to present practical information and data; circumvents complicated mathematics wherever possible. Includes over 700 cited references, numerous line drawings and photographs, and several useful tables and equations relating optical data to physical properties.

Advanced Holography - Metrology and Imaging covers digital holographic microscopy and interferometry, including interferometry in the infra red. Other topics include synthetic imaging, the use of reflective spatial light modulators for writing dynamic holograms and image display using holographic screens. Holography is discussed as a vehicle for artistic expression and the use of software for the acquisition of skills in optics and holography is also presented. Each chapter provides a comprehensive introduction to a specific topic, with a survey of developments to date.

The objective of this study was to develop a whole-field experimental stress analysis method for composite structures. A data-gathering system, using the optical technique of laser speckle interferometry, was used to capture deformation of bodies under load on a film record. The speckle interferograms were analyzed by a computer-aided scanning system. A mathematical and geometrical interpretation of interferometric data is presented. The interferograms were analyzed at strategic image points on the test specimens to obtain displacement data which was used to calculate strains, shearing strains, and correlated with shearing stresses. Anisotropic elastic constants such as Young's modulus, shear modulus, and Poisson's ratio were calculated. A full-field aperture analysis was used as a tool to qualitatively observe the free edge effects of shear specimens. The techniques presented in this report are significant because full-field or discrete information can be obtained from any point rather than averaging data from a small region. (Author).