Analysis of Plane-Strain Metal Forming Problem with Linear Programming Method
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概要
- 論文の詳細を見る
A method to determine the states of strain and stress in plastically deforming billet under plane-strain condition is proposed by applying the upper and lower bound theorems to finite element method. With the linear programming method, the upper bound value of forming load is minimized and the lower bound value is maximized to obtain optimum fields of velocity and stress, respectively. As an example, plane-strain extrusion is treated. The upper and lower bound values of extrusion pressure are in comparatively good agreement with those of slip line field method. It is confirmed that the calculated velocity and stress fields present good approximations of the exact fields.
- 一般社団法人日本機械学会の論文
著者
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Osakada Kozo
Department Of Mechanical Engineering Kobe University
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Osakada Kozo
Department Of Mechanical Engineering Faculty Of Engineering Science Osaka University
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Fujii Susumu
Department Of Cardiovascular Surgery Fukui Prefectural Hospital
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KITAHARA Yoshiyuki
Kobe University
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NARUTAKI Ryonosuke
Department of Systems Engineering,Kobe University
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Fujii Susumu
Department Of Systems Engineering Kobe University
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Narutaki Ryonosuke
Department Of Systems Engineering Kobe University
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OSAKADA Kozo
Department of Mechanical Engineering,Kobe University
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