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A New Model of Scale Dependent Crystal Plasticity Analysis
https://kitami-it.repo.nii.ac.jp/records/8031
https://kitami-it.repo.nii.ac.jp/records/80317a10c75b-7b6c-43d0-b577-c60bb715a6c0
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
No5.pdf (461.9 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||
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| 公開日 | 2015-11-27 | |||||||
| タイトル | ||||||||
| タイトル | A New Model of Scale Dependent Crystal Plasticity Analysis | |||||||
| 言語 | en | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | metal microstructure | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | crystal plasticity analysis | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | dislocations | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | scale dependent plasticity | |||||||
| 資源タイプ | ||||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||||
| タイプ | journal article | |||||||
| 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 | |||||||
| 著者 |
大橋, 鉄也
× 大橋, 鉄也
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| 著者別名 | ||||||||
| 識別子Scheme | WEKO | |||||||
| 識別子 | 41772 | |||||||
| 姓名 | 大橋, 鉄也 | |||||||
| 言語 | ja | |||||||
| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | Crystal plasticity analysis of slip deformation in metal microstructure enables one to calculate densities for the statistically stored (SS) and the geometrically necessary (GN) dislocations, and such densities are utilized to evaluate the critical resolved shear stresses for slip systems. In this paper, we propose a new model, where the mean free path of moving dislocations is defined as a function of the densities for SS and also, GN dislocations, and the critical resolved shear stresses for slip systems are given only by SSDs. Scale dependent characteristics of GN dislocations is transmitted to the SSDs via the mean free path and finally, to the slip resistance of slip systems. Tensile deformations of six-grained multicrystal models whose average grain diameter, d?, ranges from 0.1 to 500 μm, are analyzed with this new model and microand macroscopicd aspects are examined. Plastic flow stresses increase almost linearly with d-1/2 within the range, 500 > d > 1 μm, showing the Hall-Petch relation, and this grain refinement effect is gradually reduced for finer microstructures. | |||||||
| 書誌情報 |
Solid Mechanics and its Applications 巻 114, p. 97-106, 発行日 2004 |
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| DOI | ||||||||
| 識別子タイプ | DOI | |||||||
| 関連識別子 | http://doi.org/10.1007/978-1-4020-2111-4_10 | |||||||
| 出版者 | ||||||||
| 出版者 | Springer | |||||||
| 著者版フラグ | ||||||||
| 言語 | en | |||||||
| 値 | author | |||||||
| 出版タイプ | ||||||||
| 出版タイプ | AM | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||
