Autor: Ozgenc Ebil, Mustafa Güden, C.-J. Yu, Ian W. Hall
Rok vydání: 2001
Předmět:
Zdroj: Journal of Materials Science. 36:5853-5860
ISSN: 0022-2461
Popis: Metallic foam-filled tubes and their empty counterparts have been tested at quasi-static and dynamic strain rates in order to determine their energy absorption capabilities. Data from the Split-Hopkinson Pressure Bar have been used to generate force vs. displacement curves that are somewhat analogous to pseudo-engineering stress-strain curves. Force balance calculations have also been made. These results indicate that, on an equal weight basis, foam-filled tubes offer greater energy absorption capability than empty tubes at quasi-static strain rates. However, the benefit of foam filling does not appear to be extended to strain rates of the order of 200–500 s−1. Force balance calculations are shown to have potential as a method for monitoring the crushing of metallic foams at high strain rate.
Databáze: OpenAIRE