Extending Image Processing Strain Measurement System to Evaluate Fracture Behavior of Wall-Thinned Pipes

• 資料種別: 文書・図像類
• タイトル: Extending Image Processing Strain Measurement System to Evaluate Fracture Behavior of Wall-Thinned Pipes
• 著者・編者: TSUJI, Masataka; MESHII, Toshiyuki
• 著者標目: TSUJI, Masataka; MESHII, Toshiyuki
• 出版事項: Elsevier
• 出版年月日等: 2011-09
• 出版年（W3CDTF）: 2011-09
• タイトル（掲載誌）: Nuclear Engineering and Design
• 巻号年月日等（掲載誌）: 241 9
• 掲載巻: 241
• 掲載号: 9
• 掲載ページ: 3605-3612
• 本文の言語コード: eng
• 件名標目: wall-thinned pipes; 3D movement analysis; image processing strain measurement system
• 対象利用者: 一般
• 一般注記: In this paper, an image processing strain measurement system was extended so that fracture behavior of wall-thinned pipes, such as out of plane and large plastic deformation observed in bulging, can be evaluated by the system. Regular grids with nominal size of 10 x 10 mm were marked on 100A carbon steel pipes and the images taken with 6 CCD cameras of 15 million pixels were correlated to achieve resolution of 0.3% strain. Strain of the cylinder outer surface was evaluated by 1) modeling the grids as a cylindrical shell, 2) measuring deformation of the grid on a projected plane, and 3) applying an updated Lagrangian method. The results indicate the possibility that the method is effective for the measuring large strains of wall thinned pipes observed before failure.
• 一次資料へのリンクURL: https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=22243&item_no=1&attribute_id=22&file_no=1
• オンライン閲覧公開範囲: 限定公開
• 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）; https://irdb.nii.ac.jp
• 提供元機関・データベース: 福井大学 : 福井大学学術機関リポジトリ