11R21. Techniques of Tomographic Isodyne Stress Analysis. Solid Mechanics and its Applications, Vol 75. - JT Pindera (Dept of Civil Eng, Univ of Waterloo, Waterloo, ON, Canada). Kluwer Acad Publ, Dordrecht, Netherlands. 2000. 286 pp. ISBN 0-7923-6388-4. $134.00.
Reviewed by AM Vinogradov (Dept of Mech Eng, Montana State Univ, Roberts Hall, Bozeman MT 59717).
This is an interesting, very specialized, and somewhat unusual book. It focuses on the method of isodyne stress analysis, using optical measurements. The author states that the “book is written as a technical guide for tomographic isodyne experiments and as a reference monograph.”
The book consists of five parts. Part 1, Review of Basic Motions: Reality, Models and Theories, is of a very general nature. It presents the author’s philosophical views in regard to the society and technology interaction, including discussions of general technological trends, modern technological requirements, and interrelations between theoretical and experimental approaches in science and engineering. The stated purpose of such considerations is to define the frame of reference for the presentation of the main subject.
Part 2, Review: Basic Stress-Strain Relations, Basic Materials Relations, provides an overview of material characterization techniques based on the theories of linear elasticity and linear viscoelasticity. Further, the author outlines the basic requirements of these constitutive theories in terms of adequate experimental determination of material responses under various stress-strain conditions that depend parametrically on time and temperature.
It is only starting with Part 3, Outline of the Theories of Analytical and Optical Isodynes, when the author concentrates on the main subject, ie, the tomographic isodyne stress analysis. Part 3 provides a theoretical foundation for nondestructive stress measurements using optical techniques. The author demonstrates that the method of isodyne stress measurements satisfies the required standards of accuracy and reliability in regard to the obtained empirical information.
Part 4, Isodyne Experimentation–Theories and Techniques, contains a discussion of the experimental procedures required for the implementation of the isodyne stress analysis. In this regard, the author provides a general overview of the basic principles and experimental techniques underlying the optical isodyne methodology. Of particular interest is the list of various materials and the respective requirements that would warrant the application of the method. The author also presents some guidelines for sample preparation and accuracy considerations in regard to data collection.
Part 5, Case Studies, contains a number of examples illustrating the isodyne method of stress measurements under various loading conditions, including two-dimensional stress analysis of plates and the stress analysis of beams under the action of concentrated loads. The use of the isodyne methodology for dynamic applications is briefly discussed.
Each part of the book includes a reasonably extensive bibliography. However, from the entire list of references, it is obvious that the author relies primarily on his own work, providing very limited citations of the work by other researchers in the field. This fact creates an impression of certain subjectivity. A more broad coverage of the subject matter in the context of historical developments in the field would have been a welcome addition.
In general, the book is well written. The philosophical undertones make the reading interesting and somewhat entertaining. The quality of the figures, tables, and other illustrations is excellent. It is obvious that the author is one of the top experts in the field.
Techniques of Tomographic Isodyne Stress Analysis will be of interest to researchers and engineers working in various areas of the stress analysis of structures and components, as well as those interested in nondestructive material evaluation techniques. The book is recommended for library and individual collections.
