MORITA Chihiro

写真a

Affiliation

Engineering educational research section Department of Civil and Environmental Engineerring Program

Title

Professor

External Link

Degree 【 display / non-display

  • 博士(工学) ( 1996.7   九州大学 )

  • 工学修士 ( 1990.3   長崎大学 )

  • 工学士 ( 1988.3   長崎大学 )

Research Areas 【 display / non-display

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Structure engineering and earthquake engineering

 

Papers 【 display / non-display

  • Baggingと複数のパッチ画像を用いたCNN識別器による耐候性鋼材のさびの外観評価手法 Reviewed

    有村和也,重井徳貴,森田千尋,石塚洋一,宮島廣美

    知能と情報   34 ( 2 )   533 - 538   2022.5

     More details

    Language:Japanese   Publishing type:Research paper (scientific journal)  

    DOI: 10.3156/jsoft.34.2_533

  • Temperature deformation characteristics of acrylic windows used for tide embankments Reviewed

    Yasui K., Shiokawa A., Watanabe M., Kinoshita H., Morita C.

    AIMS Materials Science   8 ( 6 )   932 - 951   2021.12

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:AIMS Materials Science  

    Tide-embankment walls protecting coastal roads frequently contain numerous windows so that pedestrians and drivers can view the scenery without experiencing reduced sunlight. Tide-embankment windows must withstand extreme climatic conditions. However, the effects of temperature extremes on acrylic boards have rarely been studied. This paper proposes a simple method for constructing a high-temperature environment and a method for measuring strain on an acrylic plate. The deformation and strain of a 40-mm-thick acrylic tide-embankment window were determined experimentally and numerically in this study in a high-temperature environment, obtaining similar results; additionally, the numerical method was subsequently used to simulate a low-temperature environment. Because thermal conductivity was low, the internal temperature of the thick acrylic board did not immediately change with the temperature of the surface, and thermal expansion and contraction of the board were restrained. Temperature-induced deformation effects were low across the entire range of temperatures and heating rates recorded in coastal Japan.

    DOI: 10.3934/matersci.2021057

    Scopus

  • CFD investigation for a 7-pin wrapped-wire fuel assembly with different wires Reviewed International coauthorship

    Lin J., Huang M., Zhang S., Wang B., Huang J., Matsuda H., Morita C.

    Annals of Nuclear Energy   164   2021.12

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Annals of Nuclear Energy  

    The fuel rods of the fast reactor are radially and axially fixed and supported by wrapped-wire. The wrapped-wire not only prevents the fuel rod from vibrating but also stirs the coolant, thereby enhancing heat transfer. This paper uses the SST k–ω turbulence model and commercial CFD software to investigate the effect of the number of the wrapped-wires on flow field. The results show that under normal operating conditions, the increase of the number of wrapped wires will increase the pressure difference, but it is conducive to the mixing of the flow field due to the regular eddy current phenomena caused by uneven pressure distribution, which is one of the reasons that affect the convective heat transfer of fuel assemblies.

    DOI: 10.1016/j.anucene.2021.108626

    Scopus

  • A comprehensive study of single-flawed granite hydraulically fracturing with laboratory experiments and flat-jointed bonded particle modeling Reviewed International coauthorship

    Zhang R., Zhao C., Yang C., Xing J., Morita C.

    Computers and Geotechnics   140   2021.12

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Computers and Geotechnics  

    Understanding the mechanisms of crack initiation and development is important for utilizing the hydraulic fracturing in practical engineering applications. In this study, hydraulic fracturing experiments were conducted on granite specimens containing a single pre-existing flaw, and the failure processes were analyzed using the digital image correlation method. A flat-jointed bonded particle model was built with a modified fluid flow algorithm to better understand the fracture behavior under the experimental conditions. Combining the DIC strain fields and the simulated displacement fields, we found that shear behavior with a small value also emerges ahead of the tips of the microcracks and was covered by the subsequent tensile behavior, as a result, shear strain could not be observed in the experiments. A comparison between the strain localization and the microcracks revealed that the fracturing process observed in the experiments had two stages: the isolated strain localization formed during Stage I, mainly resulting from the increase in microcracks, and the continuous high tensile strain path formed during Stage II. Additionally, the effect of the different flaw inclination angles was discussed from two perspectives: the different types of macrocracks and the change in the fracturing liquid pressure.

    DOI: 10.1016/j.compgeo.2021.104440

    Scopus

  • Al系溶射皮膜の長期大気暴露試験における耐候性評価 Reviewed

    中野敦,白井敬大,森田千尋,押川渡,米沢昇

    鋼構造年次論文報告集   29   526 - 537   2021.11

     More details

    Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

display all >>

Books 【 display / non-display

  • これだけは知っておきたい橋梁メンテナンスのための構造工学入門

    委員長:岩城一郎 他( Role: Joint author)

    建設図書  2019.5 

     More details

    Language:Japanese Book type:Textbook, survey, introduction

  • 耐候性鋼橋梁の可能性と新しい技術

    主査:山口栄輝 他( Role: Joint author)

    日本鋼構造協会 テクニカルレポート  2006.10 

     More details

    Language:Japanese Book type:Scholarly book

  • ロマンを訪ねて~九州橋紀行

    九州橋梁・構造工学研究会 主査:﨑元達郎 他( Role: Joint author)

    西日本新聞社  1995.7 

     More details

    Language:Japanese Book type:General book, introductory book for general audience

MISC 【 display / non-display

  • デジタル画像相関法を用いた橋梁の亀裂・変位・ひずみ計測に関する研究 Invited

    出水享,松田浩,伊藤幸広,森田千尋

    光技術コンタクト   60 ( 2 )   32 - 39   2022.2

     More details

    Authorship:Last author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  • 「橋の日」の制定・活動と47都道府県橋の日運動の支援 Invited

    森田千尋

    土木学会誌   ( 8月 )   60 - 61   2021.8

     More details

    Authorship:Lead author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  • 宮崎大学工学部で行った高校生「総合的な探究の時間」の評価

    田村宏樹、森田千尋、盆子原康博、荒井昌和、菅本和寛、坂本眞人、石津貴弘

    宮崎大学工学部紀要   49   17 - 22   2020.9

     More details

    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)  

  • 宮崎における橋梁点検技術者養成講座について Invited

    森田千尋,福林良典,李春鶴,神山惇,安井 賢太郎,真木大介

    第23回関西大学先端科学技術シンポジウム   272 - 275   2019.1

     More details

    Language:Japanese   Publishing type:Research paper, summary (national, other academic conference)  

  • 長崎県のインフラ維持管理の現状と長崎大学の道守養成講座 Invited Reviewed

    松田浩,森田千尋,中村聖三,池田正樹

    橋梁と基礎   ( 3月 )   41 - 45   2016.3

     More details

    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

Presentations 【 display / non-display

  • SfMを用いた構造物の3次元モデル化について

    小川裕棋,森田千尋,松川尚史,塩竃柚貴,白井敬大

    「歴史的構造物の非破壊検査」ミニシンポジウム 

     More details

    Event date: 2022.3.8

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 小型ドローンとSfMを利用した構造物ひび割れ点検における写真ラップ率の影響

    中西涼太,中丸ゆかり,安井賢太郎,森田千尋,出水享

    令和3年度土木学会西部支部研究発表会 

     More details

    Event date: 2022.3.5

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 異なる大気環境における機能性防錆塗装システムの初期腐食挙動

    兼松克行,中野敦,汐川晶 ,森田千尋,博多屋智志

    令和3年度土木学会西部支部研究発表会 

     More details

    Event date: 2022.3.5

    Language:Japanese   Presentation type:Oral presentation (general)  

  • Al系溶射皮膜の長期大気暴露試験における耐候性評価

    中野敦,白井敬大,森田千尋,押川渡,米沢昇

    第29回鋼構造年次論文(報告)発表会 

     More details

    Event date: 2021.11.18 - 2021.11.19

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 日射によるアーチ橋トラス桁部の温度変化に関する基礎的検討

    奥松俊博,友廣健太,中村聖三,西川貴文,松田浩,森田千尋

    土木学会第76回年次学術講演会 

     More details

    Event date: 2021.9.9 - 2021.9.10

    Language:Japanese   Presentation type:Oral presentation (general)  

display all >>

Awards 【 display / non-display

  • 第29回鋼構造年次論文(報告)発表会優秀発表賞

    2021.11   一般社団法人日本鋼構造協会  

    中野敦,白井敬大,森田千尋,押川渡,米沢昇

     More details

    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

  • 第8回九州橋梁・構造工学研究会シンポジウム優秀発表賞

    2020.12   一般社団法人九州橋梁・構造工学研究会  

    白井敬大、中野敦、森田千尋、押川渡、米沢昇

     More details

    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

  • 第27回鋼構造年次論文(報告)発表会優秀発表賞

    2019.11   一般社団法人日本鋼構造協会  

    森田千尋,中野敦,白井敬大,押川渡,米沢昇

     More details

    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

  • 平成30年度土木学会全国大会第73回年次学術講演会優秀発表賞

    2018.11   公益社団法人土木学会  

    佐藤宏紀,森田千尋,小川裕紀,大西晋太郎

     More details

    Award type:Award from Japanese society, conference, symposium, etc.  Country:Japan

  • 国土技術開発賞二0周年記念創意開発技術賞

    2018.7   国土交通省  

    計測リサーチコンサルタント,K&Tこんさるたんと,伊藤幸広,松田浩,出水享,福岡県工業技術センター,森田千尋

     More details

    Country:Japan

display all >>

Grant-in-Aid for Scientific Research 【 display / non-display

  • 地方橋梁の三次元モデルの構築と効率的・効果的な復元設計による維持管理環境の創出

    Grant number:20K04666  2020.04 - 2023.03

    科学研究費補助金  基盤研究(C)

      More details

    Authorship:Principal investigator 

  • 橋梁狭隘箇所の変状認識を目的とするGNSSを採用したUAV自律航行システムの開発

    2020.04 - 2021.03

    科学研究費補助金  基盤研究(C)

      More details

    Authorship:Coinvestigator(s) 

  • 3次元データを用いたインフラ構造物の革新的点検・診断システムの開発

    Grant number:19K04556  2019.04 - 2021.03

    科学研究費補助金  基盤研究(C)

      More details

    Authorship:Coinvestigator(s) 

  • 光学的計測法を用いた仮設足場を用いない効率的・低コストな橋梁健全度診断手法の開発

    2017.04 - 2020.03

    科学研究費補助金  基盤研究(B)

      More details

    Authorship:Coinvestigator(s) 

  • 歴史的建造物のオーセンティシティと耐震性確保のための保存再生技術の開発

    2016.04 - 2021.03

    科学研究費補助金  基盤研究(S)

      More details

    Authorship:Coinvestigator(s) 

display all >>