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Defense Intelligence Reference Document Materials For Advanced Aerospace Platforms

Defense Intelligence Agency · 27 pages · text from the file's own layer

This Defense Intelligence Reference Document from the Defense Intelligence Agency, dated 12 January 2010, is one of a series of advanced technology reports produced in FY 2009 under the Advanced Aerospace Weapon System Applications (AAWSA) program. It reviews materials for launch vehicles, space vehicles and reusable rocket engines, including aluminum alloys, polymer and metal matrix composites, titanium and nickel alloys, ceramics and titanium aluminides. It concludes that newer materials and design methods offer many ways to improve structural efficiency and cost compared with the space shuttle.

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  • p. 8 …A disadvantage of a pre-preg whose matrix is a thermoset is limited shelf life. In…
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  • p. 22 …thermal strains and improves the thermal fatigue life. Invar is so named because it uses the…
  • p. 24 …reduced toughness as a function of service life. Nevertheless, CMCs are the material class that holds…
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Contents
Introduction ........................................................................................................... iv
Launch Vehlcles ....................................................................................................................................................................~········· 1
Reusable Crew Modules.......••......•..•....•..•.••...........•............................................ 9
Reusable Sing.le-Stage-to-Orbit Vehicles ...................................................... 10
Advanced Al Alloys ................................................................................................ 11
Polymer Matrix Composites .....................................................................-..... 11
Al Matrix Composites.......................................................................................12
Ti Alloys .............~ ......... ~ ............................................................................................................ 12
Tl Matrix Composltes ..............................................................................111 ...................................................w............ 14
NI-base Alloys ...............................................w.......................................................................................111 ............ 16
Refractory Metal Alloys ..............................................................................................................................................."..... 18
Ceramic Matrix Composites ............................................................................................., ............... 18
Carbon-Carbon CompOsi'l;~s ................................................................................................................................ 19
Titanium Alumlnldes .................................................................................................._................ 20
Propulsion Sy~tems ....................................................................,_..........................i .................... 21
Summary and Recommendations ....................................................................................................... 22
Figures
1. Schematic Diagram of Friction Stir Welding ....................................................... 2
2. Specially Modified 747 TransPorter Unloading a Boeing 787 Composite
Fuselage Barrel Section ...........................................................................................................................'!' ....... 4
3. Micrograph Showing Phase Formation at the Surface of a Tl .Alloy That has •
Been Exposed to Air at Elevated Temperature ................................................. 13
4. Cross-Section Micrograph of a Ti Matrix Composite ................................... ~·····. 15
Tables
1. Potential Materials by Use Temperature Regime and Property ......................... 10
2. Example of Properties of Ti Matrix Composites~ i
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iii
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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 27 pages are in the text index: search them above, or from the library's search.