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Multi-scale computational modeling for concrete damage by mixed pore pressures – case of coupled alkali–silica reaction and cyclic freeze/thaw
http://hdl.handle.net/10131/00012883
http://hdl.handle.net/10131/00012883d95b5a88-65c3-4dd5-af43-d4cf08c93819
名前 / ファイル | ライセンス | アクション |
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engineering computations_Gong_paper-201710028.pdf (2.0 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-01-31 | |||||
タイトル | ||||||
タイトル | Multi-scale computational modeling for concrete damage by mixed pore pressures – case of coupled alkali–silica reaction and cyclic freeze/thaw | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | Multi-scale modeling, Alkali-silica reaction, Freeze thaw cycles, Poro-mechanics, Strong coupling | |||||
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 | |||||
著者 |
Gong, Fuyuan
× Gong, Fuyuan× Takahashi, Yuya× Maekawa, Koichi |
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著者所属 | ||||||
Institute of Advanced Sciences, Yokohama National University, Kanagawa, Japan | ||||||
著者所属 | ||||||
Department of Civil Engineering, The University of Tokyo, Tokyo, Japan | ||||||
著者所属 | ||||||
Department of Urban Innovation, Yokohama National University,Kanagawa, Japan | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Purpose:This paper aims to propose a multi-scale simulation approach for the concrete macro-mechanical damage caused by mixed micro-pore pressures, such as the coupled alkali–silica reaction (ASR) and freeze-thaw cycles (FTC). | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Design/methodology/approach:The micro-physical events are computationally modeled by considering the coupling effect between ASR gel and condensed water in the mixed pressure and motion. The pressures and transport of pore substances are also linked with the concrete matrix deformation at macro-scale through a poro-mechanical approach, and affect each other, reciprocally. Once the crack happens in the nonlinear analysis, both the micro-events (water and gel motion) and the macro mechanics will be mutually interacted. Finally, different sequences of combined ASR and FTC are simulated. | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Findings:The multi-chemo mechanistic computation can reproduce complex events in pore structures, and further the macro-damages. The results show that ASR can reduce the FTC expansion for non-air-entrained concrete, but may increase the frost damage for air-entrained concrete. The simulation is examined to bring about the observed phenomena. | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Originality/value:This paper numerically clarifies the strong linkage between macro-mechanical deformation and micro-chemo-physical events for concrete composites under coupled ASR and FTC. | |||||
書誌情報 |
Engineering Computations 巻 35, 号 6, p. 2367-2385, 発行日 2018-08-06 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 02644401 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10446136 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1108/EC-11-2017-0431 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
出版者 | ||||||
出版者 | Emerald Publishing Limited |