繰り返し熱衝撃下円筒内表面環状き裂の停留深さ

Material type: 文書・図像類

Author: 飯井, 俊行ほか

Publisher: 日本機械学会

Publication date: 2001-09

Material Format: Digital

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Note (General)：: In this paper we analyze the crack arrest depth for an inner-surface circumferential crack in a finite-length cylinder under cyclic thermal shock. The...

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Material Type: 文書・図像類
Title: 繰り返し熱衝撃下円筒内表面環状き裂の停留深さ
Author/Editor: 飯井, 俊行
細田, 誠
渡邊, 勝彦
MESHII, Toshiyuki
HOSODA, Makoto
WATANABE, Katsuhiko
Author Heading: 飯井, 俊行
細田, 誠
渡邊, 勝彦
MESHII, Toshiyuki
HOSODA, Makoto
WATANABE, Katsuhiko
Publication, Distribution, etc.: 日本機械学会
Publication Date: 2001-09
Publication Date (W3CDTF): 2001-09
Alternative Title: Crack Arrest Depth under Cyclic Thermal Shock for an Inner-Surface Circumferential Crack in a Cylinder
Periodical title: 日本機械学会論文集. A編
No. or year of volume/issue: 67 661
Volume: 67
Issue: 661
Pages: 1535-1541
Text Language Code: jpn
Subject Heading: Fracture Mechanics
Stress Intensity Factor
Crack Arrest
Thermal Shock
Target Audience: 一般
Note (General): In this paper we analyze the crack arrest depth for an inner-surface circumferential crack in a finite-length cylinder under cyclic thermal shock. The edges of the cylinder were rotation-restrained and the inside of the cylinder was cooled from uniform temperature distribution. The effects of structural parameters and the heat transfer conditions on the maximum transient stress intensity factor were investigated with the previously developed systematic evaluation methods. Then, assuming the Paris law and a tentative value of threshold stress intensity range ΔK_<th>, we evaluated the crack depth for crack arrest under cyclic thermal shock. Finally, we developed a map to find the crack arrest depth for a cylinder with mean radius to wall thickness ratio R_m/ W= 1 and a specific length H under various heat transfer conditions. From this map, we can predict that when the heat transfer coefficient and/or initial wall-coolant temperature differences are large enough, the non-dimensional crack arrest depth saturates at a specific value and is no longer affected by material properties of the cylinder.
Source: https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=22179&item_no=1&attribute_id=22&file_no=1
https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=22179&item_no=1&attribute_id=22&file_no=1
Access Restrictions: 限定公開
Rights (production): 〓 2001 日本機械学会
Data Provider (Database): 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
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ