並列タイトル等Application of Moire Method to Strain Analysis of Polymers
タイトル(掲載誌)航空宇宙技術研究所報告 = Technical Report of National Aerospace Laboratory TR-470
一般注記This paper describes application of the Moire method to strain analysis of polymers. The mechanical properties of polymers are normally dependent on time and temperature. Especially, the stiffnesses of such materials are greatly effected by temperature. In the range above the“glass transition temperature”, polymers show viscoelastic behavior, become soft and greatly deformed. In the range below the temperature, however, the materials become as hard and brittle as glass. Employing the Moire method, however, makes it possible to measure the large displacement of soft materials without the influence of temperature change or the reinforcing effect. Moreover, strain is easily analysed by differentation of displacement. Therefore, the method can be applied to the displacement or strain analysis of polymers in higher temperature ranges. As an example, the Moire method was applied to the analysis of creep strain, thermal strain and residual strain of epoxy resins. The experimental results indicate that the thermo-mechanical property of epoxy resins in each temperature range can be determined by the Moire fringe patterns, along with the strains obtained by the fringe patterns. The validity of the results were verified by comparison with strains analysed by other methods. Moreover, various applications, limitations and improved techniques of the Moire method are also discussed.
資料番号: NALTR0470000
レポート番号: NAL TR-470
一次資料へのリンクURLhttps://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=44723&item_no=1&attribute_id=31&file_no=1
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)
提供元機関・データベース宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ