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Shock and Vibration
/
2019
/
Article
/
Tab 3
/
Research Article
Buffering Performance of High-Speed Impact Space Penetrator with Foam-Filled Thin-Walled Structure
Table 3
Material properties.
Material
E
(MPa)
μ
ρ
(
t
/mm
3
)
G
(MPa)
β
Alloy steel
2.1
e
5
0.28
7.7
e
− 9
—
—
7075
7.2
e
4
0.33
2.8
e
− 9
230
—
Polyurethane
—
0.45
1
e
− 8
1.5
1.05