Abstract
The occurrence of adiabatic shear bands in metals is analyzed using models based on 1. (i) load instability and 2. (ii) flow localization. In the former case, shear strain concentration is identified with the occurrence of a maximum in the shear stress-shear strain curve. By contrast, the latter model treats localization as a process which begins to develop at a material imperfection at the onset of deformation. In both cases, the flow softening arising from adiabatic heating is taken to be the driving force behind the process. The predictive capabilities of the two types of model are compared using data on shear band formation during the explosive expansion of 4340 steel cylinders. It is shown that the flow localization model forecasts the occurrence of adiabatic shear bands more accurately and is thus more useful for the prediction of nonuniform flow at high rates of strain such as those which occur during impact loading and metalcutting.
Sign-in/Register to access full text options 
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.
