환경조건간 합동을 이용한 복합재료 허용치 생성 기법 = Pooling-Across-Environments Method for the Generation of Composite-Material Allowables

다국어 초록 (Multilingual Abstract)

The properties of composite materials, when compared to those of metallic materials, are highly variable due to many factors including the batch-to-batch variability of raw materials, the prepreg manufacturing process, material handling, part-fabrication techniques, ply-stacking sequences, environmental conditions, and test procedures. It is therefore necessary to apply reliable statistical-analysis techniques to obtain the design allowables of composite materials. A new composite-material qualification process has been developed by the Advanced General Aviation Transport Experiments (AGATE) consortium to yield the lamina-design allowables of composite materials according to standardized coupon-level tests and statistical techniques; moreover, the generated allowables database can be shared among multiple users without a repeating of the full qualification procedure by each user. In 2005, NASA established the National Center for Advanced Materials Performance (NCAMP) with the purpose of refining and enhancing the AGATE process to a self-sustaining level to serve the entire aerospace industry. In this paper, the statistical techniques and procedures for the generation of the allowables of aerospace composite materials will be discussed with a focus on the pooling-across-environments method.

참고문헌 (Reference)

1 서장원, "국산 복합재료의 물성치 공유체계 수립을 위한 요구조건" 항공우주시스템공학회 7 (7): 32-38, 2013

2 "Tutorials for Statistics and Qualification" 2013

3 Y. Ng, "NCAMP Standard Operating Procedures (SOP)"

4 J. Tomblin, "Material Qualification and Equivalency for Polymer Matrix Composite Material Systems: Updated Procedure" FAA 2003

5 F. W. Scholz, "K-Sample Anderson-Darling Tests of Fit" 82 (82): 918-924, 1987

6 Seung Yun Rhee, "Development of Qualification System for Fiber-Reinforced Composite Materials" 8 (8): 55-61, 2014

7 "CMH-17 Rev.G, Composite Materials Handbook -Vol.1. Polymer Matrix Composites Guidelines for Characterization of Structural Materials"