Abstract
In the present study of adiabatic shear banding in metals, the region of interest is modelled as a two-material two-temperature body. Specific material laws governing thermoviscous plasticity and heat transfer are ascribed to the shear-band zone. Momentum and energy balance lead to a system of one-dimensional ordinary differential equations describing the dynamics of the shear localization process. The propagating shear band is viewed as having two distinct regions. The first is the shear-band tip process zone within which adiabatic heating, thermal softening and all shear dissipation are considered to occur. The second is the late-time quasi-steady zone in which the shear stress and dissipation rate are close to zero. The analysis provides the width and displacement of the shear-band process zone. In addition, criteria for assessing material shear-banding resistance are investigated in terms of a shear-band dissipation rate, or a shear-band toughness. Shear-band dissipation and shear-band toughness for a number of metals are calculated and compared.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
