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  1. 学術雑誌論文
  2. その他
  1. 部局別インデックス
  2. 工学部

ランダム荷重下における疲労き裂発生の検知について

http://hdl.handle.net/20.500.12000/219
http://hdl.handle.net/20.500.12000/219
4ab9a3b1-467f-4849-a8b9-4688e2d11230
名前 / ファイル ライセンス アクション
kaneshiro_h06.pdf kaneshiro_h06.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2007-03-04
タイトル
タイトル ランダム荷重下における疲労き裂発生の検知について
言語 ja
作成者 真壁, 朝敏

× 真壁, 朝敏

ja 真壁, 朝敏

西田, 新一

× 西田, 新一

ja 西田, 新一

浦島, 親行

× 浦島, 親行

ja 浦島, 親行

兼城, 英夫

× 兼城, 英夫

ja 兼城, 英夫

Makabe, Chobin

× Makabe, Chobin

en Makabe, Chobin

Nishida, Shin-ichi

× Nishida, Shin-ichi

en Nishida, Shin-ichi

Urashima, Chikayuki

× Urashima, Chikayuki

en Urashima, Chikayuki

Kaneshiro, Hideo

× Kaneshiro, Hideo

en Kaneshiro, Hideo

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利情報
言語 ja
権利情報 Copyright (c) 1994 日本機械学会
主題
言語 en
主題Scheme Other
主題 Fatigue
言語 en
主題Scheme Other
主題 Detection of Crack Initiation
言語 en
主題Scheme Other
主題 Strain Interference Method
言語 en
主題Scheme Other
主題 Strain Waveform
言語 en
主題Scheme Other
主題 FFT
言語 en
主題Scheme Other
主題 Power Spectrum
内容記述
内容記述タイプ Other
内容記述 A method of detecting fatigue crack initiation in some weak section of a machine element is examined using a holed specimen under random load conditions. Waveforms of two strain functions, that is h1 = ε_<y1> + λε_<y2> and h2 = ε_<y1> - λε_<y2>, are successively observed. ε_<y1> and ε_<y2> are the strains in the vicinity of the hole and λ is the strain range ratio Δε_<y1>/Δε_<y2>. The function h1 can be used to substitute for the load parameter and the waveform of h2 changes its shape after the crack initiation due to the crack closure behavior. Therefore, we can detect the fatigue crack initiation at the hole by comparison of these two waveforms. Also, these waveforms are analyzed with FFT (Fast Fourier Transformation) to allow for a more effective detection of crack initiation. Power spectrum density of the waveform h2 varies immediately when the crack length measured from hole edge reaches about 0.5 mm. The figures showing the coherence of two waveforms h1 and h2 clearly vary at the same length 0.5 mm. Thus, the crack initiation of its length of 0.5 mm can be easily detected with the analysis of the strain waveform.
内容記述タイプ Other
内容記述 論文
出版者
言語 ja
出版者 日本機械学会
言語
言語 jpn
資源タイプ
資源タイプ journal article
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/219
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 03875008
収録物識別子タイプ NCID
収録物識別子 AN0018742X
収録物名
言語 ja
収録物名 日本機械学会論文集. A編
書誌情報
巻 60, 号 576, p. 41-48
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