DYNAMIC YOUNG MODULI OF SPACE MATERIALS AT LOW-TEMPERATURES

Authors
ZHANG Z ZHAO LZ TU ZH ZHANG PQ
Citation
Z. Zhang et al., DYNAMIC YOUNG MODULI OF SPACE MATERIALS AT LOW-TEMPERATURES, Cryogenics, 34(10), 1994, pp. 839-842
Citations number
10
Categorie Soggetti
Physics, Applied",Thermodynamics
Journal title
Cryogenics → ACNP
ISSN journal
00112275
Volume
34
Issue
10
Year of publication
1994
Pages
839 - 842
Database
ISI
SICI code
0011-2275(1994)34:10<839:DYMOSM>2.0.ZU;2-B
Abstract
Using vibration analysis methods, the dynamic mechanical properties of space materials at low temperatures (from 4.2 to 300 K) are studied i n this paper. System identification techniques in the time domain are used to identify the dynamic parameters of the space materials Ti-5Al- 2.5Sn extra-low-interstitial (ELI) alloy and Al-2.5Li-1.3Cu-0.9Mg-0.13 Zr (Al-Li) alloy. The dynamic Young's moduli of these materials ate ca lculated using the basic natural frequencies at different temperatures .