期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 36, 期 3, 页码 781-789出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2015.10.018
关键词
Hollow microspheres; Glass foam; Compression test; Strain rate; Energy absorption capacity
This study investigates the effects of the size of hollow glass microspheres (20 pm vs. 40 pm) and composition on the energy absorption capacity of the silicate glass foams under both the quasistatic (similar to 10(-3) s(-1)) and high-strain rate (similar to 10(3) s(-1)) loading conditions. These measurements revealed that while the size difference of the hollow glass microspheres and the foam composition have negligible effects on the uniaxial quasistatic response, their effects were significant under the dynamic loading conditions. The results suggest that the smaller glass microspheres (20 mu m) dominated the dynamic behavior of the glass foams in comparison to the larger glass microspheres (40 mu m), leading to a significant increase of the energy absorption capacity of the 20 mu m-based glass foams at high-strain rates. Glass foams exhibited energy absorption capacity of about 54 kJ/kg under the dynamic loading that is greater in comparison to that of the typical metallic and syntactic foams. (C) 2015 Elsevier Ltd. All rights reserved.
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