教員イメージ
OSHIMA Sota
助教

大島 草太 オオシマ ソウタ おおしま そうた

プロフィール

所属

東京都立大学システムデザイン学部 航空宇宙システム工学科
システムデザイン研究科 航空宇宙システム工学域

最終学歴・学位

東京農工大学大学院・工学府・機械システム工学専攻 博士(工学)

専門・研究分野

複合材料工学,材料強度学,衝撃工学 ,航空宇宙工学

研究

研究テーマ

先進複合材料構造の強度評価ならびに損傷・破壊挙動に関する研究

研究キーワード

複合材料,接着継手,破壊じん性試験,微視的損傷進展評価

研究イメージ

詳細情報

(査読付き論文誌)
• Masao Kimura, Toshiki Watanabe, Sota Oshima, Yasuo Takeichi, Yasuhiro Niwa, Yuji Seryo, Masaki Hojo, "Nanoscale Crack Initiation and Propagation in Carbon Fiber/Epoxy Composites under Mixed-Mode Loading Using Synchrotron Radiation X-ray Computed Tomography", Composite Science and Technology, In Press.
• Sota Oshima, Aya Mamishin, Masaki Hojo, Masaaki Nishikawa, Naoki Matsuda, Manato Kanesaki, "High-Resolution In situ Characterization of Micromechanisms in CFRP Laminates under Mode II Loading", Engineering Fracture Mechanics, 260, 108189 (2022).
• Kota Takamoto, Toshio Ogasawara, Hiroki Kodama, Tomoisa Mikami, Sota Oshima, Kazuyuki Aoki, Ryo Higuchi, Tomohiro Yokozeki, "Experimental and Numerical Studies of the Open-Hole Compressive Strength of Thin-Ply CFRP Laminates", Composites Part A: Applied Science and Manufacturing, 145, 106365 (2021).
• Sota Oshima, Siaw Onwona-Agyeman, Norihide Saho, Kwame Sarpong Appiah, Yoshiharu Fujii, "Development and Evaluation of Mulching Boards Fabricated from Bagasse", Transactions of the Materials Research Society of Japan, 45 (1), 9-13 (2020).
• Sota Oshima, Akinori Yoshimura, Shigeki Yashiro, Yoshiyasu Hirano, Toshio Ogasawara, "Experimental and Analytical Validation of Double-Lap Joint-Like Mode II Fracture Toughness Tests", Composite Structures, 234, 111757 (2020).
• Sota Oshima, Akinori Yoshimura, Yoshiyasu Hirano, Toshio Ogasawara, Kwek-Tze Tan, "In-situ Observation of Microscopic Damage in Adhesively Bonded CFRP Joints under Mode I and Mode II Loading", Composite Structures, 227, 111330, (2019).
• 大島草太, 石田久喜, 秋龍植, 日下貴之, 竹田智, "構造用フィルム接着剤を用いたCFRP接着接合継手のき裂進展挙動に及ぼす負荷速度の影響", 材料, 67 (4), 438-444 (2018).
• Sota Oshima, Hisayoshi Ishida, Takayuki Kusaka, Tomo Takeda, "Experimental Characterization of Dynamic Crack Growth Behavior in CFRP Adhesive Interface", Advanced Composite Materials, 27 (4), 397-411 (2018).
• Sota Oshima, Akinori Yoshimura, Yoshiyasu Hirano, Toshio Ogasawara, "Experimental Method for Mode I Fracture Toughness of Composite Laminates Using Wedge Loaded Double Cantilever Beam Specimens", Composites Part A: Applied Science and Manufacturing, 112, 119-125 (2018).
• Sota Oshima, Hisayoshi Ishida, Ryota Tanegashima, Takayuki Kusaka, Tomo Takeda, "Experimental Characterization of Crack Growth Behavior in Adhesive Interface under Impact Loading", Key Engineering Materials, 715, 116-121 (2016).

(国際会議)
• Rina Matsueda, Sota Oshima, Hirobumi Tobe, Eiichi Sato, Koichi Kitazono, "Grain Size Dependence of Large-Strain Superelastic Axial-Bending in Cu-Al-Mn Shape Memory Alloy", 16th International Conference on Martensitic Transformation (ICOMAT2022), Mar. 2022.
• Sota Oshima, Toshio Ogasawara, Kwek-Tze Tan, "Improvement of Mechanical Properties of Adhesively Bonded Joints Using Metamaterials", 46th International Conference and Expo on Advanced Ceramics and Composites (ICACC2022), Jan. 2022.
• Sota Oshima, "In-situ Observation of Failure Process in Adhesively Bonded CFRP Joints: Relationship Between Microscopic Failure Process and Fracture Toughness", 46th International Conference and Expo on Advanced Ceramics and Composites (ICACC2022), Jan. 2022, Invited.
• Yuji Seryo, Sota Oshima, Kosuke Miyaki, Masao Kimura, Toshiki Watanabe, Masaki Hojo, Masaaki Nishikawa, Naoki Matsuda, "Microscopic Triaxial Stress State Analysis to Explain Damages Around Crack Tip in CFRP Observed with 50 nm-Resolution X-CT", 1st Virtual ESIS TC4 Conference on Fracture of Polymers, Composites and Adhesives, Sep. 2021.
• Ryo Higuchi, Sota Oshima, Shu Minakuchi, Tomohiro Yokozeki, Takahira Aoki, "Study on Cooling Rate-Dependent Mechanical Properties of Thermoplastic Composites", American Society for Composites 36th Annual Technical Conference, Sep. 2021.
• Sota Oshima, Masaki Hojo, Kohei Yamada, Toshio Ogasawara, "Deformation Behavior of Neat Epoxy Resin under Loading and Unloading Conditions", 8th International Conference on Fatigue of Composites (ICFC8), Jun. 2021.
• Tomoisa Mikami, Sota Oshima, Toshio Ogasawara, "In-situ Observation of Microscopic Failure Process in Adhesively Bonded CFRP Joints under Mixed-mode Loading", The 12th Korea-Japan Joint Symposium on Composite Materials, Dec. 2019.
• Kota Takamoto, Sota Oshima, Toshio Ogasawara, "Effects of Off-Axis Angle and Layer Thickness on the Compressive Strength of Cross-Ply CFRP Laminates", ASC 34th Annual Technical Conference, Sep. 2019.
• Sota Oshima, Akinori Yoshimura, Yoshiyasu Hirano, Toshio Ogasawara, "Microscopic Failure Mechanism in Adhesively Bonded CFRP Joints under Mode I and Mode II Loading", The 3rd South-East Asia Japan Conference on Composite Materials, Aug. 2019.
• Sota Oshima, Akinori Yoshimura, Yoshiyasu Hirano, Toshio Ogasawara, "In-situ Observation of Strain Field in Adhesively Bonded CFRP Joints under Mode I and Mode II Loading", 22nd International Conference on Composites Materials, Aug. 2019.
• Mae Oiwa, Toshio Ogasawara, Sota Oshima, Takahira Aoki, "Fracture Behavior and Face Sheet Buckling Analysis of CFRP/Honeycomb Sandwich Panels Subjected to Bending Load", 22nd International Conference on Composites Materials, Aug. 2019.
• Sota Oshima, Akinori Yoshimura, Yoshiyasu Hirano, Toshio Ogasawara, "Characterization of Mode I Interlaminar Fracture Toughness in Composite Materials Using Wedge Loaded DCB Specimens", ASC 33rd Annual Technical Conference/18th US-Japan Conference on Composite Materials/ASTM D30, Sep. 2018.
• Sota Oshima, Akinori Yoshimura, Yoshiyasu Hirano, Toshio Ogasawara, "In-situ Observation of Crack Tip Strain Field in CFRP Laminates Using Digital Image Correlation Method", 15th Japan International SAMPE Symposium & Exhibition, Nov. 2017.
• Yongsik Choo, Sota Oshima, Hisayoshi Ishida, Takayuki Kusaka, Tomo Takeda, "Evaluation of Impact Fracture Toughness of Adhesively Bonded CFRP Joints", 21st International Conference on Composites Materials, Aug. 2017.
• Sota Oshima, Hisayoshi Ishida, Yongsik Choo, Takayuki Kusaka, Tomo Takeda, Toshio Ogasawara, "Evaluation of Dynamic Crack Growth Behavior of CFRP Adhesively Bonded Joints" 3rd Joint Turkey-Japan Workshop on Polymer Composite Materials, Jul. 2017.
• Hisayoshi Ishida, Sota Oshima, Takayuki Kusaka, Tomo Takeda, "Experimental Method for Determining Fracture Toughness in Adhesive Bonded Joints under Impact Loading" The 31st International Congress on High-speed Imaging and Photonics, Nov. 2016.
• Sota Oshima, Hisayoshi Ishida, Takayuki Kusaka, Tomo Takeda, "Experimental Characterization of Dynamic Crack Growth Behavior in CFRP Adhesive Interface" The 10th Asian-Australasian Conference on Composite Materials, Oct. 2016.
• Sota Oshima, Hisayoshi Ishida, Ryota Tanegashima, Takayuki Kusaka, Tomo Takeda, "Experimental Characterization of Crack Growth Behavior in Adhesive Interface under Impact Loading" The 9th International Symposium on Impact Engineering, Sep. 2016.

そのほかの業績はresearchmapを参照ください。
• ベストプレゼンテーション賞, 日本材料学会破壊力学部門委員会 (2022)
• 優秀発表賞, 日本材料学会複合材料部門委員会 (2021)
• 第44回複合材料シンポジウム 優秀学生賞, 日本複合材料学会 (2019)
• 平成30年度論文賞, 日本材料学会複合材料部門委員会 (2019)
• Poster Award at 15th Japan International SAMPE Symposium and Exhibition, The Society for the Advancement of Material and Process Engineering (SAMPE) (2017)
• 第59回構造強度に関する講演会 若手奨励賞, 日本航空宇宙学会 (2017)
• 三浦賞, 日本機械学会 (2017)
• 第8回日本複合材料会議 優秀学生講演賞, 日本複合材料学会 (2017)
所属学会
• 日本航空宇宙学会
• 日本機械学会
• 日本材料学会
• 日本複合材料学会

活動内容
• 2021年度代議員(日本複合材料学会)
• 強化プラスチックス編集委員(強化プラスチック協会)
• 宇宙航空研究開発機構(JAXA)客員(2021/7~)
• 日本大学非常勤講師(2021/4~)
  • 航空宇宙工学実験2
  • 航空宇宙工学概論1
  • 航空宇宙工学概論2
  • 航空宇宙工学実験1
  • 航空宇宙工学実験2
  • 航空宇宙システム工学特別研究1
  • 航空宇宙システム工学特別研究2
  • 航空宇宙工学実験1
  • 航空宇宙工学概論
  • 航空宇宙システム工学特別研究1
  • 航空宇宙システム工学特別研究2
  • 研究プロジェクト演習(4)

連絡先

内線番号

内線8671

メールアドレス

s_oshima●tmu.ac.jp
(メールを送信される場合は●を@に変換してください)