Download e-book for iPad: Adiabatic Shear Localization by Yilong Bai

By Yilong Bai

ISBN-10: 0080977812

ISBN-13: 9780080977812

Adiabatic shear localization is a style of failure that happens in dynamic loading. it really is characterised through thermal softening taking place over a really slim area of a fabric and could be a precursor to ductile fracture and catastrophic failure. This reference resource is the revised and up to date model of the 1st specific learn of the mechanics and modes of adiabatic shear localization in solids. development at the luck of the 1st variation, the booklet presents a scientific description of a couple of points of adiabatic shear banding. The ideas and methods defined during this paintings can usefully be utilized to resolve a large number of difficulties encountered by way of these investigating fracture and harm in fabrics, impression dynamics, steel operating and different parts. particular chapters specialise in lively fabrics, polymers, bulk steel glasses, and the math of shear banding in addition to the numerical modeling of them. With its unique insurance of the topic, this publication is of serious curiosity to teachers and researchers into fabrics functionality in addition to professionals.

  • Up-to-date assurance of the topic and learn that has happened over the last 20 years
  • Each bankruptcy is written on a special sub-field of adiabatic shear by means of an said specialist within the field
  • Detailed and transparent discussions of every aspect

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Example text

They examined the influence of austenitization temperature on the energy consumption under shear loading. Disregarding the hat-shaped geometry [32], where the punch and hole diameter are the same size, there exists in the literature few examinations where the punch diameter is lower than the hole diameter; most investigations are carried out on specimens where the punch diameter is larger than the hole diameter. This configuration leads to an additional compressive load, as a hydrostatic pressure.

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]. Investigations of Blu¨mke [87] on an AA 7075 alloy and on a tool steel demonstrated that a good correlation between the results of the dynamic compression/ shear test and the chip formation during high-speed cutting does exist.

Sunwoo et al. [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.

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