JP7167763B2 - 疲労き裂の開口・閉口挙動の予測方法 - Google Patents
疲労き裂の開口・閉口挙動の予測方法 Download PDFInfo
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Claims (3)
- 有限要素法を用いた解析によって疲労き裂の開口・閉口時の挙動を予測する方法であって、
き裂の開口・閉口を模擬する工程において、対向する要素間の間隙量が0よりも大きい所定の値である臨界間隙量以下になった時点から当該要素間に接触圧を発生させる、予測方法。 - 請求項1に記載の予測方法であって、
荷重を加えて所定の長さだけき裂を進展させる工程を模擬する工程と、
前記荷重を減少させてき裂を閉口させる工程を模擬する工程と、
前記荷重を増大させてき裂を開口させる工程を模擬する工程と、を備える、予測方法。 - 請求項2に記載の予測方法であって、
前記き裂閉口時の荷重及び/又は前記き裂開口時の荷重に基づいて、有効応力拡大係数範囲を算出する工程をさらに備える、予測方法。
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007178397A (ja) | 2005-12-28 | 2007-07-12 | Toshiba Corp | 発電機ロータのき裂進展予測システムと運転条件決定支援システム、方法およびプログラム、並びに運転制御システム |
JP4378506B2 (ja) | 2004-07-09 | 2009-12-09 | 株式会社産学連携機構九州 | 疲労き裂成長曲線の推定法、推定プログラムおよび推定装置 |
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Patent Citations (2)
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JP4378506B2 (ja) | 2004-07-09 | 2009-12-09 | 株式会社産学連携機構九州 | 疲労き裂成長曲線の推定法、推定プログラムおよび推定装置 |
JP2007178397A (ja) | 2005-12-28 | 2007-07-12 | Toshiba Corp | 発電機ロータのき裂進展予測システムと運転条件決定支援システム、方法およびプログラム、並びに運転制御システム |
Non-Patent Citations (2)
Title |
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小林英男 外3名,コンパクト試験片の破面粗さおよび酸化物誘起き裂閉口の有限要素解析 [online],日本機械学会論文集(A編),1985年,第51巻,第461号,pp.152-155,[検索日 2022.09.14], インターネット,URL:https://www.jstage.jst.go.jp/article/kikaia1979/51/461/51_461_152/_article/-char/ja/ |
篠崎勇人 外3名,き裂開閉口挙動を考慮した疲労き裂進展解析システムの構築 [CD-ROM],計算工学講演会論文集,一般社団法人日本計算工学会,2018年06月06日,第23巻,論文番号C-02-01 |
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