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4. Material characterization
Characterization and modeling (part sizing) are closely linked. It is from the analysis of phenomena occurring during use that the characteristics to be measured are determined.
Characterization and therefore sizing are fraught with difficulties.
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Phenolic materials, whether for ablative and/or insulating use, are composites: as such, they are distinguished from other materials by their anisotropy. The preferred directions of the molded composite according to the arrangements of the fibrous reinforcements are imperatively marked (mark 1, 2 and 3) and remain attached to the composite (figure 3 a).
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Material characterization
Sizing nozzle parts
Standardization
French Standards Association (AFNOR)
- Reinforced plastics – Moulding composites and prepregs. Determination of apparent volatile matter content. - NF ISO 9782 - 06-1994
- Fiber-reinforced plastics – Prepregs – Determination of the conventional resin flow rate (float) parallel to the plane of the folds. - T 57-603 - 09-1988
- Fiber-reinforced plastics – Prepregs and molding compounds – Determination of resin,...
Manufacturers. Suppliers (non-exhaustive list)
In France
Rhodia – Fibers and Resins Intermediate
(manufacturer of phenolic resin)
Hexcel Fabrics
(impregnated manufacturer)
...Websites
American Institute of Aeronautics and Astronautics (AIAA) :
Snecma Propulsion solide :
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