External research report
- Publisher: 宇宙航空研究開発機構
宇宙航空研究開発機構研究開発資料=JAXA research and development memorandum,
Compressive strength, carbon fiber composites, standard test method
A specific non-hole compressive (NHC) test method for advanced composite materials has not been widely authorized even now because of the essential difficulty of NHC tests. In this study, standard test methods such as SRM-1 (SACMA), Celanese (former ASTM D3410 A-method), ASTM D695, ASTM D6484 (SRM-3), ASTM D6641 (CLC), JIS K7076 (A method) were evaluated for three kinds of quasi-isotropic carbon/epoxy composites (CFRP). Furthermore, two kinds of original compressive test methods, i.e.NAL-I, II, were proposed. It was revealed that SRM-1 and ASTM D6641 (CLC) are more adequate than any other standard methods from the view point of reliability, repeatability ad efficiency. It was demonstrated that the experimental results obtained by NAL-II method were similar to those by SRM-1 and ASTM D6641.