Fracture Mechanics: Fundamentals and Applications Surjya Kumar Maiti
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Surface Wetting: Characterization, Contact Angle, and Fundamentals Kock-Yee Law and Hong Zhao Springer, 2016 162 pages, $99.00 (e-book $69.99) IBSN 978-3-319-25212-4
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lh lthough h the h authors h humbly state in their preface that this book is “not intended for expert researchers, who may view the content as nothing new,” I would recommend this book to anyone who thinks they understand (or would like to understand) the complexities in the seemingly simple matter of determining and deciphering wetting of solid surfaces. In their captivating way, the authors provide a very informative view on the state of the field. Through ample reference to key research works— some six to seven decades old or more but largely ignored, and others quite recent—they underscore common misconceptions about surface wetting while providing good insights into the physics behind the phenomenon. The book begins with a short background on the history, importance, and basis for controversy in contact-angle measurements. The next chapter covers
proper measurement of contact angles, including critical comparison of common instrumentation and techniques, and advice for best practices. The third chapter discusses Young’s equation and what it means, and gets to the heart of why many use it improperly. They argue convincingly that the equation deals with mechanical equilibrium—not thermodynamic equilibrium, as many believe— and then describe the consequences of this formal understanding. In chapter 4, rough surfaces are considered, and some inadequacies of commonly used relations are discussed. Having broken many dogmas in the earlier part of the book, the fifth chapter tries to answer the question of what we actually learn from a contactangle measurement. Chapters 6 and 7 give some order to the confusion surrounding concepts of surface energy, surface tension, and Young’s angle. In chapter 6, such terms
Fracture Mechanics: Fundamentals and Applications Surjya Kumar Maiti Cambridge University Press, 2015 295 pages, $71.95 ISBN 9781107096769
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racture mechanics is an essential discipline for predicting the safe operating limits of structures containing flaws such as small interior or surface cracks. It is originally based on the concept of stress amplification at the crack tip, first put forth by A.A. Griffith, with improvements in its underlying scientific basis by others, notably G.R. Irwin.
Maiti’s book is an excellent overview textbook on fracture mechanics, with an emphasis on the mechanics perspective and without much emphasis on materials science. As such, it focuses on a mathematical approach to solving for the magnitudes and distributions of stresses in mechanical pieces in a wide variety of geometric configurations. The book is filled with partial
as wettability, adhesion, hydrophilicity/ -phobicity, and the related degree of affinity to oils (oleophilicity/-phobicity) are defined clearly and quantitatively. In chapter 7, different approaches to assessing surface tension are provided with emphasis on their shortcomings. The importa
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