Adiabatic Shear Localization by Yilong Bai

By Yilong Bai

“A primary and very popular text.” Dr invoice Proud Director, Institute of concern Physics, Imperial collage London “This ebook will fill a niche for an introductory textual content on adiabatic shear, concentrating on undergraduate and post-graduate point. The exposition of the topic is easily balanced with all of the worthy constituents: creation, modelling, mathematical points, numerical tools, experiments and applications.” Dr Theodoros Katsaounis affiliate Professor, collage of Crete “Professors Dodd and Bai are top specialists within the box of adiabatic shear bands. i've got realized much from their 1992 publication, and this one may 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 fast weakening because of strength focus into slender areas of the cloth. this can be the first actual ebook in this vital subject and the one actual creation to the topic. An more desirable and up to date student-friendly variation of the authors' 1992 booklet Adiabatic Shear Localization: incidence, Theories and purposes, this seminal textual content now contains crucial additional studying sections in a few chapters. It explains adiabatic shear bands in a descriptive instead of a mathematical manner, with a 'quick reference' part for readers short of a extra speedy advent. solely finished, the reader can dip into the chapters as matches his or her direction fabric or examine. while you're a postgraduate fabrics scientist, engineer, physicist, metallurgist, or certainly any researcher in fabrics that suffer quick deformation and failure, this article isn't to be overlooked.

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26]. Latourte et al. [25] conducted dynamic torsion tests in a Hopkinson bar for a TRIP-120 and a HSLA-100 steel. A torsion specimen similar to that of Duffy and Chi [10] was used. The deformation behaviour could be depicted through photographs, and thus the evolution of shear band formation could be observed. The TRIP-120 steel shows a higher susceptibility to adiabatic shear failure than the HSLA-100 steel. 8), which was invented in 1977 by Meyer and Hartmann at the Fraunhofer Institute (IFAM, Bremen, Germany) and was used by Hartmann et al.

Odeshi et al. [74] examined the propensity of adiabatic shear failure for aluminium 6061 T6 matrix composites reinforced with alumina particles tested in a direct Hopkinson apparatus. The reinforced material conditions show a higher propensity to adiabatic shear failure than the unreinforced condition. 20). 38 Adiabatic Shear Localization Compression/Shear Test The determination of the propensity of materials for adiabatic shear failure can be examined by a new special bi-axial dynamic compression/shear test.

5 μm leads to a strain rate of up to 107 s21 [133]. Klopp et al. [132] investigated the flow shear stress behaviour of aluminium, alpha-iron and a high-strength steel under high-rate conditions. The high-strength steel shows a lower increase of flow stress with increasing strain rate in contrast to aluminium and alpha-iron. The exact perpendicular collision process is not easy to reach. g. in the case of roller bearings), according to Zhang et al. [135] and Zhang et al. [136]. Hardened steel spheres are falling on the tested material plate, which is coated with sand to induce wear.

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