Adiabatic Shear Localization - download pdf or read online

By Yilong Bai

ISBN-10: 0080977812

ISBN-13: 9780080977812

Adiabatic shear localization is a style of failure that happens in dynamic loading. it truly is characterised by means of thermal softening taking place over a truly slender area of a fabric and can be a precursor to ductile fracture and catastrophic failure. This reference resource is the revised and up to date model of the 1st designated learn of the mechanics and modes of adiabatic shear localization in solids. construction at the good fortune of the 1st version, the e-book presents a scientific description of a couple of points of adiabatic shear banding. The strategies 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, influence dynamics, steel operating and different components. particular chapters concentrate on full of life fabrics, polymers, bulk steel glasses, and the maths of shear banding in addition to the numerical modeling of them. With its certain assurance of the topic, this publication is of significant curiosity to teachers and researchers into fabrics functionality in addition to professionals.

  • Up-to-date insurance of the topic and study that has happened during the last 20 years
  • Each bankruptcy is written on a unique 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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Extra info for Adiabatic Shear Localization

Example text

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. The softer material AISI 1018 reaches a higher failure strain than the harder material AERMET100.

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. The softer material AISI 1018 reaches a higher failure strain than the harder material AERMET100. The results are used to establish a certain fracture model. The disadvantage of the cylinder explosive test is the presence of a not wellknown complex stress distribution, thus the shear bands are statistically distributed, and a defined failure site cannot be predicted.

The deformation pattern at the tip of the propagating shear bands was observed optically. Three types of materials were tested. The epoxy shows failure by tensile cracks. It was found that the fracture behaviour of Maraging steel X2NiCoMo 18-9-5 is dependent on loading velocity. At low striking velocity, only plastic deformation in the notch occurs. With a higher loading velocity, crack propagation starts, and at striking velocities higher than 30 m/s, adiabatic shear failure takes place. This velocity behaviour is influenced by the radius of the slit and the presence of a crack.

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Adiabatic Shear Localization by Yilong Bai


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