Adiabatic Shear Banding In Elastic-viscoplastic Nonpolar And Dipolar Materials
Abstract
Simple shearing deformations of a block made of an elastic-viscoplastic material are studied. The material of the block is pressumed to exhibit strain hardening, strain-rate hardening and thermal softening. The effect of modeling the material of the block as a dipolar material in which the strain gradient is also taken as an independent variable has been investigated. The uniform fields of temperature and shear stress in the block are pertubed by superimposing a temperature bump at the center of the block, and the resulting initial-boundary-value problem is solved by the Galerkin-Gear method. It is found that for simple materials as the shear stress within the region of localization begins to collapse, an unloading shear wave emanates outwards from the edges of the shear band. For dipolar materials, the localization of the deformation is considerably delayed as compared to that for nonpolar materials, the shear stress does not collapse suddenly by decreases gradually, there is no unloading wave traveling outwards from the edges of the band, and the region of localized deformation is wider as compared to that for nonpolar materials. © 1990.
Recommended Citation
R. C. Batra and C. Kim, "Adiabatic Shear Banding In Elastic-viscoplastic Nonpolar And Dipolar Materials," International Journal of Plasticity, vol. 6, no. 2, pp. 127 - 141, Elsevier, Jan 1990.
The definitive version is available at https://doi.org/10.1016/0749-6419(90)90018-A
Department(s)
Mechanical and Aerospace Engineering
Second Department
Electrical and Computer Engineering
Third Department
Chemical and Biochemical Engineering
International Standard Serial Number (ISSN)
0749-6419
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2023 Elsevier, All rights reserved.
Publication Date
01 Jan 1990
