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Guidelines and Recommended Criteria for the Development of a Material Specification for Carbon Fiber/Epoxy Fabric Prepregs:Final rept

机译：制定碳纤维/环氧树脂预浸料材料规范的指南和推荐标准：最终要求

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摘要

The building block approach is used within the composite aircraft industry for the substantiation of composite structure. A key element supporting the building block approach is material and process specifications. Material and process specifications are interwoven throughout the qualification and validation process. They are used to define the materials attributes, define the qualification characterization tests, purchase the material, and define and control the processes used for the fabrication. It is critical that the qualification specimens fabricated through the various levels of the building block approach use the same process, which is representative of the one that will be used in the fabrication of production aircraft and rotorcraft. This document recommends guidance and criteria for the development of material specifications for carbon fiber/epoxy prepreg fabric materials to be used on aircraft structures. This report is intended to be a companion to previous Federal Aviation Administration reports which established methodology for developing material allowable data, control of the data, and sharing the resulting database, DOT/FAA/AR-02/109 and DOT/FAA/AR-02/110. These reports provide recommendations for prepreg tape materials and processing. The guidelines and recommendations are meant to be a documentation of current knowledge and practices, and application of sound engineering principles to the development and implementation of composite material procurement specifications. A list of material control areas needing improvement and enhancement is provided for discussion. This document can also be used to develop common industry specifications.

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