Adiabatic Shear Localization - download pdf or read online

By Yilong Bai

ISBN-10: 0080977812

ISBN-13: 9780080977812

“A primary and very hot text.” Dr invoice Proud Director, Institute of concern Physics, Imperial collage London “This e-book will fill a spot for an introductory textual content on adiabatic shear, focusing on undergraduate and post-graduate point. The exposition of the topic is easily balanced with the entire priceless materials: creation, modelling, mathematical points, numerical equipment, experiments and applications.” Dr Theodoros Katsaounis affiliate Professor, collage of Crete “Professors Dodd and Bai are prime experts 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 a number of metals and different fabrics; they reason speedy weakening as a result of strength focus into slender areas of the cloth. this can be the first actual ebook in this very important subject and the one precise creation to the topic. An improved and up-to-date student-friendly variation of the authors' 1992 ebook Adiabatic Shear Localization: prevalence, Theories and functions, this seminal textual content now contains crucial extra interpreting sections in a few chapters. It explains adiabatic shear bands in a descriptive instead of a mathematical means, with a 'quick reference' part for readers short of a extra quick advent. totally finished, the reader can dip into the chapters as fits his or her direction fabric or examine. when you are a postgraduate fabrics scientist, engineer, physicist, metallurgist, or certainly any researcher in fabrics that endure swift deformation and failure, this article isn't to be neglected.

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Rigidity, Compression, and Shear --
Introduction to Mechanics of fabrics --
Normal tension and pressure --
Mechanical houses of fabrics --
Elasticity, Plasticity, and Creep --
Linear Elasticity, Hooke's legislations, and Poisson's Ratio --
Shear pressure and pressure --
Allowable Stresses and Allowable rather a lot --
Design for Axial so much and Direct Shear --
Axially Loaded contributors --
Changes in Lengths of Axially Loaded individuals --
Changes in Lengths of Nonuniform Bars --
Statically Indeterminate buildings --
Thermal results, Misfits, and Prestrains --
Stresses on susceptible Sections --
Strain power --
Impact Loading --
Repeated Loading and Fatigue --
Stress Concentrations --
Nonlinear habit --
Elastoplastic research --
Torsion --
Torsional Deformations of a round Bar --
Circular Bars of Linearly Elastic fabrics --
Nonuniform Torsion --
Stresses and traces in natural Shear --
Relationship among Moduli of Elasticity E and G --
Transmission of strength by means of round Shafts --
Statically Indeterminate Torsional participants --
Strain strength in Torsion and natural Shear --
Thin-Walled Tubes --
Stress Concentrations in Torsion --
Shear Forces and Bending Moments --
Types of Beams, quite a bit, and Reactions --
Shear Forces and Bending Moments --
Relationships among so much, Shear Forces, and Bending Moments --
Shear-Force and Bending-Moment Diagrams --
Stresses in Beams (Basic issues) --
Pure Bending and Nonuniform Bending --
Curvature of a Beam --
Longitudinal traces in Beams --
Normal Stresses in Beams (Linearly Elastic Materials).

Additional info for Adiabatic Shear Localization

Sample text

Belk and Watson [58] conducted investigations on a tungsten heavy alloy under dynamic compressive loading through a drop-weight tower with compression specimens that had a different ratio of diameter to length. It was found that for slender specimens, the failure is clear and occurs early. Furthermore, it was found that up to a ratio of 1 between the diameter and length of the specimen, the failure behaviour is similar and independent of the specimen length. The failure strain is increasing when the ratio between diameter and length of the specimen exceeds 1.

99] conducted explosively driven cylindrical expansion tests on AERMET100 steel in the as-received and heat-treated conditions. In the asreceived condition, they found deformed shear bands, and in the high-hardness condition, they found transformed shear bands. Goto et al. 31). The purpose was the idea to generate a plane-strain load path with a pure cylinder and a uni-axial stress load path with rings. Many rings were loaded in one test to achieve a better statistical result. The specimen subjected to uni-axial stress state has a higher failure strain than the plane-strain one.

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. According to Bai and Dodd [8], aluminium and copper fail by a ductile mechanism, and titanium alloys and uranium alloys exhibit brittle failure behaviour at cylinder explosive tests.

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Adiabatic Shear Localization by Yilong Bai

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