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Title :応力増分方向依存塑性構成式の有限要素法解析への適用 : 第1報,平面ひずみ局所くびれ
Title alternative :Application of Constitutive Law Incorporating Stress Increment Directional Dependence to F. E. M. Analysis : 1st Report, Plane Strain Shear Band Formation
Authors :呉屋, 守章
伊藤, 耿一
宮城, 清宏
末吉, 敏恭
糸村, 昌祐
Authors alternative :Goya, Moriaki
Ito, Koichi
Miyagi, Kiyohiro
Sueyoshi, Toshiyasu
Itomura, Shosuke
Issue Date :25-Aug-1995
Abstract :A constitutive law of plastic deformation has been proposed by Goya and Ito, and can incorporate the stress increment directional dependence of plastic strain increment ε^p. The law is developed through the introduction of two transition parameters μ(α) and β(α), which denote the magnitude and the direction angle of the plastic strain increment, respectively, and are defined to be functions of the direction angle of the stress increment. In this report, the law is implemented in an F. E. M. code for deformation analysis. A plane strain tension problem is analyzed for investigation of the effect of these parameters on the occurrence of the shear band. The results show that the clear shear does not appear when the calculation is performed using B_<max>=π/6, which corresponds to the degree of the directional dependence for the corners of the Tresca yield locus.
Type Local :雑誌掲載論文
ISSN :03875008
Publisher :日本機械学会
URI :http://hdl.handle.net/20.500.12000/258
Citation :日本機械学会論文集. A編 = Transactions of the Japan Society of Mechanical Engineers. A Vol.61 no.588 p.95 -100
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Engineering)

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