Abstract
Time dependences of spalling strength and critical specific fracture energy of some metals under a thermal shock initiated by x‐rays of a nuclear explosion are obtained. Under thermal‐shock conditions, the durability of metals decreases exponentially as the amplitude of the fracture stress increases. The critical specific fracture energy of metals subjected to a thermal shock increases with the duration of tensile stresses. Using an example of cones, conical shells, disks, and rods, it is shown that the geometric factor should be taken into account, which can reduce the fracture threshold and increase the degree of fracture of an object subjected to a thermal shock. This is a result of stress cumulation, occurrence of cumulative ejection of the material, and stability loss due to the action of powerful energy fluxes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Journal of Applied Mechanics and Technical Physics
Disclaimer: 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.