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  1. 学術雑誌論文
  2. その他
  1. 部局別インデックス
  2. 工学部

表面欠陥を起点とする延性破壊の機構と破断延性評価 : 単一穴を有する試験片の場合

http://hdl.handle.net/20.500.12000/143
http://hdl.handle.net/20.500.12000/143
f7dc62c9-8576-4442-9b28-acdf42d5b252
名前 / ファイル ライセンス アクション
makabe_c07.pdf makabe_c07.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2007-03-04
タイトル
タイトル 表面欠陥を起点とする延性破壊の機構と破断延性評価 : 単一穴を有する試験片の場合
言語 ja
作成者 真壁, 朝敏

× 真壁, 朝敏

ja 真壁, 朝敏

宮城, 清宏

× 宮城, 清宏

ja 宮城, 清宏

呉屋, 守章

× 呉屋, 守章

ja 呉屋, 守章

糸村, 昌祐

× 糸村, 昌祐

ja 糸村, 昌祐

Makabe, Chobin

× Makabe, Chobin

en Makabe, Chobin

Miyagi, Kiyohiro

× Miyagi, Kiyohiro

en Miyagi, Kiyohiro

Goya, Moriaki

× Goya, Moriaki

en Goya, Moriaki

Itomura, Shosuke

× Itomura, Shosuke

en Itomura, Shosuke

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利情報
言語 ja
権利情報 Copyright (c) 1995 日本機械学会
主題
言語 en
主題Scheme Other
主題 Ductile Fracture
言語 en
主題Scheme Other
主題 Ductility
言語 en
主題Scheme Other
主題 Crack Initiation
言語 en
主題Scheme Other
主題 Crack Growth
言語 en
主題Scheme Other
主題 Shear Mode Fracture
言語 en
主題Scheme Other
主題 Area Fraction of Crack
言語 en
主題Scheme Other
主題 Hole
内容記述
内容記述タイプ Other
内容記述 Tensile fracture tests of specimens having a single blind hole were carried out in order to investigate the mechanism of ductile fracture originating in a surface defect. Although a crack was initiated at the hole edge, the true stress-true strain curve of the holed specimen approximately coincided with that of the plain specimen with no hole untill the true stress reached a maximum value. In the deformation stage of the specimen after this stress value was reached, the growth behavior of the crack was not affected by the deformation of the hole. On the basis of these phenomena, parameter f_<ac> was defined by the ratio of crack area to minimum cross section of the specimen at which the true stress reached the maximum value, and the effect of hole size on the fracture ductility was examined using the parameter f_<ac>. The ture strain ε_c at the point of maximum true stress showed good correlation with the parameter f_<ac>, and the shear mode growth of the crack started unstably at this point. The relation between the fracture ductility ε_f and the parameter fαc was predicted from the relation between ε_c and f_<ac> and from the growth behavior of the crack. This relation coincided with the experimental results, and it was found that the fracture ductility ε_f of the present experiment is determined mainly by the starting conditions of unstable fracture and the growth behavior of the crack.
内容記述タイプ Other
内容記述 論文
出版者
言語 ja
出版者 日本機械学会
言語
言語 jpn
資源タイプ
資源タイプ journal article
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/143
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 03875008
収録物識別子タイプ NCID
収録物識別子 AN0018742X
収録物名
言語 ja
収録物名 日本機械学会論文集. A編
書誌情報
巻 61, 号 592, p. 15-22, 発行日 1995-12-25
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