1- Select the optimum choice for: high speed air craft skins material. Table 1: The properties of metallic materials Material E, GPa Max. use lemp., 'C | Density, Mg/cm' | ay, MPa | Relative cost per unit sheet area 2 2.8 300 Aluminum alloy Carbon steel Stainless steel 200 69 200 350 700 7.8 350 193 7.8 650 6 8.9 600 Nickel alloy Titanium alloy 207 1000 116 600 4.5 900 10

Elements Of Electromagnetics
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1- Select the optimum choice for: high speed air craft skins material.
Table 1: The properties of metallic materials
E, GPa Max. use lemp, 'C | Density, Mg/cm' ay, MPa | Relative cost per
unit sheet area
Material
2.8
300
2
Aluminum alloy
200
69
200
7,8
350
350
700
Carbon steel
Stainless steel
193
7.8
650
6
8.9
600
6
Nickel alloy
Titanium alloy
207
1000
116
600
4.5
900
10
Table 2: Weighting factor
Specific yield strength:
Max, use temperature:
Youngs modulus:
4
2
Transcribed Image Text:1- Select the optimum choice for: high speed air craft skins material. Table 1: The properties of metallic materials E, GPa Max. use lemp, 'C | Density, Mg/cm' ay, MPa | Relative cost per unit sheet area Material 2.8 300 2 Aluminum alloy 200 69 200 7,8 350 350 700 Carbon steel Stainless steel 193 7.8 650 6 8.9 600 6 Nickel alloy Titanium alloy 207 1000 116 600 4.5 900 10 Table 2: Weighting factor Specific yield strength: Max, use temperature: Youngs modulus: 4 2
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