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混合モード負荷状態下での脆性破壊限界予測のための破壊モデリングに関する基礎検討
https://repo.qst.go.jp/records/74631
https://repo.qst.go.jp/records/74631b81227c5-aa4f-4951-b387-b732eaed630f
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-03-06 | |||||
| タイトル | ||||||
| タイトル | 混合モード負荷状態下での脆性破壊限界予測のための破壊モデリングに関する基礎検討 | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
清水, 万真
× 清水, 万真× 庄司, 博人× 加藤, 太一朗× 谷川, 博康× 大畑, 充× Kato, Taichiro× Tanigawa, Hiroyasu |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | This study discusses the brittle fracture controlling parameter for the steel components under mixed mode loading with focusing on the Weibull stress concept proposed as an original Beremin model. The Weibull stress based on the original Beremin model, which is calculated by integrating a maximum principal stress over the fracture process zone around crack-tip, is widely demonstrated to be a fracture cntrolling parameter independent of crack-tip plastic constraint for 3PB specimen under mode I loading. Critical Weibull stress obtained by 3PB test founds to be different from that obtained by 4PS specimen under mixed mode loading. The reason why the Weibull stress can not be a unified fracture controlling parameter is interpreted from the crack-tip stress fields that shows the different principal stress ratio between the specimens subjected to mode I and mixed mode loading conditions. A new fracture model considering stress components other than maximum principal stress is necessary to propose a fracture controlling parameter independent of plastic constraint and loading mode mixture. | |||||
| 書誌情報 |
溶接学会論文集 巻 36, 号 4, p. 274-284, 発行日 2019-03 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0288-4771 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.2207/qjjws.36.274 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.jstage.jst.go.jp/article/qjjws/36/4/36_274/_article/-char/ja/ | |||||
