An aircraft component, made of 7075-T6 aluminum alloy, can be represented as a bar of diameter 20 mm and length of 400 mm. Calculate a) the extension of the bar under an imposed load of 80 kN, b) the load at which the bar suffers permanent deformation, and maximum load that the bar can take without fracture Table 5-2 Room-temperature properties of metallic materials Designation AM60B A1100 A7075-T6 AC41A AISI 1008 AISI 4140 AISI 304 Gray cast iron C10100 C26000 Material Composition Mg-6Al-0.3Mn Be-38Al 99.5% Al Al-5.5Zn-1.6℃u-2.5Mg Ti-6Al-4V Zn-4Al-ICU-0.04 Mg Fe-0.08C Fe-0.4C-1Cr-0.2Ni Fe-0.08C-19Cr-9Ni Fe-3C-2Si, tension Compression 99.99% Cu 70Cu-30Zn brass Ni W (at 500°C) Density, g/cm 1.8 2.1 2.71 2.8 6.6 7.87 7.82 7.9 7.15 8.9 8.53 8.9 19.3 E GPa 45 200 70 70 120 200 200 193 N.A.† 130 110 205 405 YS, MPa 130 190-310 35-150 105-500 920 160-700 420-1700 205-2000 N.A.¹ 70-365 75-450 110-620 110 TS, MPa 220 260-380 90-165 230-570 1000 330 260-700 650-1900 515-2200 150-430 570-1300 220-255 300-900 340-660 300

Elements Of Electromagnetics
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**Problem Description:**

An aircraft component, made of 7075-T6 aluminum alloy, can be represented as a bar of diameter 20 mm and length of 400 mm. Calculate:
a) The extension of the bar under an imposed load of 80 kN,
b) The load at which the bar suffers permanent deformation,
c) The maximum load that the bar can take without fracture.

**Table 5-2: Room-temperature properties of metallic materials**

| Designation  | Composition                  | Density, \( \text{g/cm}^3 \) | \( E \), GPa | YS, MPa | TS, MPa |
|--------------|------------------------------|-------------------|------------|---------|--------|
| AM60B        | Mg-6Al-0.3Mn                 | 1.8               | 45         | 130     | 220    |
| Be-38Al      |                              | 2.1               | 200        | 190-310 | 260-380|
| Al100        | 99.5% Al                     | 2.71              | 70         | 35      | 90-165 |
| A7075-T6     | Al-5.5Zn-1.6Cu-2.5Mg         | 2.81              | 70         | 505     | 570-580|
| AC41A        | Ti-6Al-4V                    | 4.43              | 113        | 920     | 1000   |
| AISI 1008    | Fe-0.08C                     | 7.87              | 200        | 160-700 | 260-700|
| AISI 4140    | Fe-0.4C-1Cr-0.2Ni            | 7.82              | 200        | 420-1700| 650-1900|
| AISI 304     | Fe-0.08C-19Cr-9Ni            | 7.9               | 193        | 205-2000| 515-2200|
| Gray cast iron | Fe-3C-2Si, tension         | 7.15              | N.A.†      | N.A.†   | 150-430 |
|              | Compression                  |                   |            |
Transcribed Image Text:**Problem Description:** An aircraft component, made of 7075-T6 aluminum alloy, can be represented as a bar of diameter 20 mm and length of 400 mm. Calculate: a) The extension of the bar under an imposed load of 80 kN, b) The load at which the bar suffers permanent deformation, c) The maximum load that the bar can take without fracture. **Table 5-2: Room-temperature properties of metallic materials** | Designation | Composition | Density, \( \text{g/cm}^3 \) | \( E \), GPa | YS, MPa | TS, MPa | |--------------|------------------------------|-------------------|------------|---------|--------| | AM60B | Mg-6Al-0.3Mn | 1.8 | 45 | 130 | 220 | | Be-38Al | | 2.1 | 200 | 190-310 | 260-380| | Al100 | 99.5% Al | 2.71 | 70 | 35 | 90-165 | | A7075-T6 | Al-5.5Zn-1.6Cu-2.5Mg | 2.81 | 70 | 505 | 570-580| | AC41A | Ti-6Al-4V | 4.43 | 113 | 920 | 1000 | | AISI 1008 | Fe-0.08C | 7.87 | 200 | 160-700 | 260-700| | AISI 4140 | Fe-0.4C-1Cr-0.2Ni | 7.82 | 200 | 420-1700| 650-1900| | AISI 304 | Fe-0.08C-19Cr-9Ni | 7.9 | 193 | 205-2000| 515-2200| | Gray cast iron | Fe-3C-2Si, tension | 7.15 | N.A.† | N.A.† | 150-430 | | | Compression | | |
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