Nanostructures

Get Adiabatic Shear Localization PDF

By Yilong Bai

ISBN-10: 0080977812

ISBN-13: 9780080977812

“A basic and very hot text.” Dr invoice Proud Director, Institute of outrage Physics, Imperial university London “This ebook will fill a niche for an introductory textual content on adiabatic shear, focusing on undergraduate and post-graduate point. The exposition of the topic is definitely balanced with all of the useful constituents: advent, modelling, mathematical elements, numerical tools, experiments and applications.” Dr Theodoros Katsaounis affiliate Professor, college of Crete “Professors Dodd and Bai are best experts within the box of adiabatic shear bands. i've got realized much from their 1992 e-book, and this one should be even better.” Prof Romesh C Batra Professor of Engineering technological know-how & Mechanics Virginia Tech collage, united states Adiabatic shear bands are present in numerous metals and different fabrics; they reason swift weakening as a result of strength focus into slim areas of the cloth. this can be the first actual ebook in this very important subject and the single actual advent to the topic. An more suitable and up to date student-friendly version of the authors' 1992 publication Adiabatic Shear Localization: prevalence, Theories and purposes, this seminal textual content now comprises crucial extra examining sections in a few chapters. It explains adiabatic shear bands in a descriptive instead of a mathematical approach, with a 'quick reference' part for readers short of a extra quick advent. solely complete, the reader can dip into the chapters as matches his or her direction fabric or learn. while you're a postgraduate fabrics scientist, engineer, physicist, metallurgist, or certainly any researcher in fabrics that suffer fast deformation and failure, this article isn't really to be overlooked.

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72] on Mg alloy, Dai et al. [73], Odeshi et al. [74] and Wu et al. [75] on Al-matrix composites and Lee et al. [76] on Inconel 690 superalloy. Dormeval [77] conducted dynamic compression tests in an SHPB on different martensitic steels. Depending on the hardness of the material, the shear-failure behaviour is different. With increasing hardness and decreasing strain-hardening coefficient, the failure strain is decreased. Wang et al. [78] conducted dynamic compression tests in a Hopkinson bar on a titanium alloy and determined the dependence of test temperature on the critical failure strain and critical failure strain rate and combined these on an assessment diagram.

The propensity of adiabatic shear failure of the materials was determined with the bi-axial dynamic compression/shear test. 24). Under static loading, both tempering conditions can be deformed to the prescribed deformation limit without failure. When dynamic loading occurs, the harder material condition failed suddenly through adiabatic shear failure. 3. A similar behaviour was found by Meyer et al. 5% shear-stress loading, where adiabatic shear failure occurred. 25 Correlation between compression/shear behaviour and chip formation at machining, according to Halle [88].

29 Fracture behaviour at a cylinder expansion test, according to Grady and Hightower [94]. Shear fracture uniform state of stress and strain. In the cylinder, a hoop stress will be induced. At the inner surface of the cylinder, large compression stresses shall appear, which induced a large plastic strain. Under this condition, adiabatic shear failure often initiates. This failure perhaps starts on the outer surface under the influence of tension stresses and propagates to the inner surface by changing the mode into an adiabatic shear band development.

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Adiabatic Shear Localization by Yilong Bai


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