Crystal Plasticity Finite-element Simulation of Non-uniform Deformation Behavior at Grain Level of Ultralow Carbon Steel
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- Hama Takayuki
- Graduate School of Energy Science, Kyoto University
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- Oka Masashi
- Graduate School of Energy Science, Kyoto University
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- Nishi Takuna
- Graduate School of Energy Science, Kyoto University
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- Matsuno Takashi
- Faculty of Engineering, Tottori University
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- Hayashi Seiji
- Automobile Operations, Monozukuri Center, Honda Motor Co., Ltd.
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- Takada Kenji
- Automobile Operations, Monozukuri Center, Honda Motor Co., Ltd.
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- Okitsu Yoshitaka
- Innovative Research Excellence, Honda R&D Co., Ltd.
抄録
<p>In this study, deformation behaviors at the grain level of coarse-grained ultralow carbon steel subjected to uniaxial tension and simple shear were simulated by using a crystal plasticity finite-element method. Heterogeneity of strain distributions appeared at the early stage and remained almost unchanged in the following deformation. Localized strain bands occurred at the grain level, but the directions of the bands depended on the deformation mode. These trends agreed well with experimental results reported in a previous paper [Hama et al., ISIJ Int., 61 (2021), 1971]. The mechanisms that the direction of the localized strain bands depended on the deformation mode were studied on the basis of the slip activities. The activities of slip systems roughly followed the Schmid factor, and the slip directions of the most active slip systems were consistent with the directions of localized strain bands, suggesting that the direction of localized strain bands were determined primarily by the Schmid factor.</p>
収録刊行物
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- ISIJ International
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ISIJ International 64 (3), 576-586, 2024-02-15
一般社団法人 日本鉄鋼協会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390580626907718528
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- ISSN
- 13475460
- 09151559
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
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- 抄録ライセンスフラグ
- 使用不可