二軸荷重下における疲れき裂成長特性

Material type: 文書・図像類

Author: 角田, 義秋ほか

Publisher: 航空宇宙技術研究所

Publication date: 1979-01

Material Format: Digital

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Note (General)：: The applicability of linear fracture mechanics to biaxial fatigue crack propagation is examined experimentally and analytically. The biaxial loading h...

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Material Type: 文書・図像類
Title: 二軸荷重下における疲れき裂成長特性
Author/Editor: 角田, 義秋
北川, 英夫
結城, 良治
寺田, 博之
太平, 寿昭
KAKUTA, Yoshiaki
KITAGAWA, Hideo
YUUKI, Ryoji
TERADA, Hiroyuki
OHIRA, Toshiaki
Author Heading: 角田, 義秋
北川, 英夫
結城, 良治
寺田, 博之
太平, 寿昭
KAKUTA, Yoshiaki
KITAGAWA, Hideo
YUUKI, Ryoji
TERADA, Hiroyuki
OHIRA, Toshiaki
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1979-01
Publication Date (W3CDTF): 1979-01
Alternative Title: Fatigue Crack Propagation under Biaxial Loads
Periodical title: 航空宇宙技術研究所報告 = Technical Report of National Aerospace Laboratory TR-558
No. or year of volume/issue: 558
Volume: 558
Pages: 18-
ISSN (Periodical Title): ISSN : 0389-4010
Text Language Code: jpn
Target Audience: 一般
Note (General): The applicability of linear fracture mechanics to biaxial fatigue crack propagation is examined experimentally and analytically. The biaxial loading high cycle fatigue testing machine, which is used, is capable of controlling the mean and the amplitude of both axial loads and the phase difference between them. The cross type specimens with a center crack of high strength steel(WELTEN 60) and two aluminum alloys(2024-T3, 7075-T6) are tested for use in the experiments. In this paper, the following stress intensity factor expression, in which the biaxial loading effects were taken into account by the linear superposing manner, was introduced for data analysis; KI=σy square root ofπa FI,y + σx square root of πa FI,x where FI,y and FI,x are the correction factors of the stress intensity factors of the biaxial loading specimen which was obtained by the modified mapping collocation method. The fatigue crack propagation properties(da/dN～ΔK) were obtained under the four sets of biaxial load conditions, for three kinds of materials. The da/dN～ΔK curves in various combinations of biaxial loads agree with each other. Moreover it was shown that these data analysed by the above equation coincide with those of the center notched strip specimens under uniaxial load with sufficient accuracy.
資料番号: NALTR0558000
レポート番号: NAL TR-558
Source: https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=44812&item_no=1&attribute_id=31&file_no=1
https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=44812&item_no=1&attribute_id=31&file_no=1
Access Restrictions: 限定公開
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): 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