Abstract
An energy-based approach is used to examine the problem of cleavage fracture. The approach is based on a comparison of the store of energy in the specimen and the work done in its fracture. A series of approximate calculations is performed with the use of the program UP-OK to determine the critical unit fracture energy λ*necessary to complete the fracture work and fragment the specimen over a period within the submicrosecond range. The specimens were made of titanium (VT1-0), brass (L62, L63), bronze (BrB2, BrB2M), and molybdenum (MCh-1) and had a thickness Δ within the range 0.01–1 mm. They were subjected to a brief pulse of x radiation from a nuclear explosion. The estimates that were obtained showed that the critical unit fracture energy λ*is not a material constant but instead depends on the loading conditions. It increases with an increase in the time of action τ of the tensile stresses in the cleaved cross section.
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.
