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異なる鋭さをもつ切欠部の降伏の実物光塑性解析
https://jaxa.repo.nii.ac.jp/records/35118
https://jaxa.repo.nii.ac.jp/records/351182826903e-664f-4d8d-b082-58f2bc6f21e1
名前 / ファイル | ライセンス | アクション |
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SA4134990.pdf (1.1 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
タイトル | 異なる鋭さをもつ切欠部の降伏の実物光塑性解析 | |||||
言語 | ||||||
言語 | jpn | |||||
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 | departmental bulletin paper | |||||
その他のタイトル(英) | ||||||
その他のタイトル | On a Photoelasto-Plastic Analysis of the Yielding of Notched Parts With Various Sharpnesses by Means of the Coating Method. | |||||
著者 |
河田, 幸三
× 河田, 幸三× 井上, 宏起× KAWATA, Kozo× INOUE, Hirokazu |
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出版者 | ||||||
出版者 | 東京大学航空研究所 | |||||
書誌情報 |
東京大学航空研究所集報 巻 2, 号 4, p. 198-207, 発行日 1960-12 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 底部の曲率半径Rを変えた90°V形切欠および半円形切欠をもつ構造要素が,切欠底部で局部的降伏をおこし,更に無制限流れに至る過程を,アルミニウム合金試験片にエポキシ・ポリサルファイド共重合体(エポキシ・ラバー)皮膜を接着し,実物光塑性により解析した.この結果,切欠底の弾塑性応力集中係数σ/σ_0および歪εの基準応力σ_0による変化の模様が明らかにされ,局部的降伏開始後のσ/σ_0~σ_0関係は切欠の鋭さによらず略同一の双曲線状曲線にのること,R→0の場合も含め,P_Y(flow limit)/P_<Y0>(局部的降伏のはじまる荷重)〓1.75~3.7程度の値をとることが知られた. | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The processes of local yielding and unrestricted flow in uniaxial tension tests of notched Al alloy specimens are analyzed by means of photoelastic coating method, using an epoxy-polysulfide copolymer as the coating material. The shapes of notches are classified into two series: one is 90°V-shaped notch and the other is semicircular notch. The radii of curvature R at the bottoms of the notches are varied in the range between 5mm and nearly 0mm. The variation of elasto-plastic stress concentration factors σ/σ_0 and strains ε at the bottoms of the notches with standard stress σ_0 are clarified. The plots of σ/σ_0 versus σ_0 are shown by a hyperbola-like curve irrespective of the sharpness of notches, after the beginning of local yielding. The values of the ratio P_Y (flow limit)/P_<Y0> (the load at which a local yielding begins) are obtained as 1.75~3.7 for all tested cases including R→0. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0563-8097 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00162214 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: SA4134990000 |