7475-lay-up 4/3 Aramid fiber reinforced sheet laminate: MIL-HDBK-5J Design Allowables
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| Material class | Hybrid |
| Alloy / temper / form | 7475 / lay-up 4/3 / Aramid fiber reinforced sheet laminate |
| Specifications | AMS 4302 |
| Handbook | MIL-HDBK-5J, 31 January 2003, section 7.5.2.0, Table 7.5.2.0(b) (pdf page 42 of the chapter file) |
| Dimension bands | 1 |
| Density | 0.082 lb/in3 |
Design Mechanical and Physical Properties (room temperature)
As printed in the handbook table. Bases: A and B are statistical minimums (99 % and 90 % probability at 95 % confidence), S the specification minimum. Grain directions: L longitudinal, LT long transverse, ST short transverse.
| Dimension band | 0.074–0.074 in | |
|---|---|---|
| Specification | AMS 4302 | |
| Basis | S | |
| Ftu, ksi | L | 114 |
| LT | 50 | |
| Fty, ksi | L | 82 |
| LT | 42 | |
| Fcy, ksi | L | 44 |
| LT | 47 | |
| Fsu, ksi | L | 33 |
| LT | 33 | |
| E, Msi | 10 | |
| Ec, Msi | 9.6 | |
| G, Msi | 0.35 | |
| ρ, lb/in3 | 0.082 | |
Effect of Temperature
The handbook maps no temperature-effect figure to this table.
Other 7475 Tables
- 7475-lay-up 2/1 Aramid fiber reinforced sheet laminate (Table 7.5.2.0(b))
- 7475-lay-up 3/2 Aramid fiber reinforced sheet laminate (Table 7.5.2.0(b))
- 7475-lay-up 5/4 Aramid fiber reinforced sheet laminate (Table 7.5.2.0(b))
Source and Use
U.S. Department of Defense (2003). Metallic Materials and Elements for Aerospace Vehicle Structures. MIL-HDBK-5J, 31 January 2003 (public domain). The values are the handbook's design allowables as extracted from the chapter tables; check the printed table before use in a certified analysis, and note that MIL-HDBK-5J was superseded by MMPDS, whose later editions may differ. No warranty is given.