A criterion for ductile fracture is introduced in the finite element simulation of sheet metal forming. From the calculated histories of stress and strain in each element, the fracture initiation site and the critical stroke are predicted by means of the ductile fracture criterion. The calculations are carried out for axisymmetric stretch forming of various aluminium alloy sheets and their laminates clad by mild steel sheets. The predictions so obtained are compared with experimental observations. The results show that the combination of the finite element simulation and the ductile fracture criterion enables the prediction of forming limit in a wide range of sheet metals.
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North China Univ Sci & Technol, Coll Mech Engn, Tangshan 063210, Peoples R ChinaNorth China Univ Sci & Technol, Coll Mech Engn, Tangshan 063210, Peoples R China
Xing, Menglong
Liu, Yangchao
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North China Univ Sci & Technol, Coll Mech Engn, Tangshan 063210, Peoples R ChinaNorth China Univ Sci & Technol, Coll Mech Engn, Tangshan 063210, Peoples R China
Liu, Yangchao
Lu, Jianwei
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North China Univ Sci & Technol, Qing Gong Coll, Tangshan 064000, Peoples R ChinaNorth China Univ Sci & Technol, Coll Mech Engn, Tangshan 063210, Peoples R China
Lu, Jianwei
Huang, Xiaomin
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North China Univ Sci & Technol, Coll Mech Engn, Tangshan 063210, Peoples R ChinaNorth China Univ Sci & Technol, Coll Mech Engn, Tangshan 063210, Peoples R China
Huang, Xiaomin
Wang, Xinge
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North China Univ Sci & Technol, Coll Mech Engn, Tangshan 063210, Peoples R ChinaNorth China Univ Sci & Technol, Coll Mech Engn, Tangshan 063210, Peoples R China
Wang, Xinge
Xue, Jianqi
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Tangshan Polytech Univ, Coll Automot Engn, Tangshan 063299, Peoples R ChinaNorth China Univ Sci & Technol, Coll Mech Engn, Tangshan 063210, Peoples R China
Xue, Jianqi
Zhang, Fuming
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Shougang Jingtang United Iron & Steel Co Ltd, Cold Rolling Operat Dept, Tangshan 063200, Peoples R ChinaNorth China Univ Sci & Technol, Coll Mech Engn, Tangshan 063210, Peoples R China
Zhang, Fuming
Du, Fengshan
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Yanshan Univ, Natl Engn Res Ctr Equipment & Technol Cold Strip R, Qinhuangdao 066004, Peoples R ChinaNorth China Univ Sci & Technol, Coll Mech Engn, Tangshan 063210, Peoples R China
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Harbin Inst Technol, Dept Mechatron Engn, Harbin 150006, Peoples R China
Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R ChinaHarbin Inst Technol, Dept Mechatron Engn, Harbin 150006, Peoples R China
Liu, H. S.
Fu, M. W.
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Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R ChinaHarbin Inst Technol, Dept Mechatron Engn, Harbin 150006, Peoples R China
机构:
Jilin Univ, Coll Mat Sci & Engn, Changchun 130025, Peoples R China
Jilin Univ, Roll Forging Res Inst, Changchun 130025, Peoples R ChinaJilin Univ, Coll Mat Sci & Engn, Changchun 130025, Peoples R China
Sun, Lirong
Cai, Zhongyi
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Jilin Univ, Coll Mat Sci & Engn, Changchun 130025, Peoples R China
Jilin Univ, Roll Forging Res Inst, Changchun 130025, Peoples R ChinaJilin Univ, Coll Mat Sci & Engn, Changchun 130025, Peoples R China
Cai, Zhongyi
Gao, Jiaxin
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Jilin Univ, Coll Mat Sci & Engn, Changchun 130025, Peoples R China
Jilin Univ, Roll Forging Res Inst, Changchun 130025, Peoples R ChinaJilin Univ, Coll Mat Sci & Engn, Changchun 130025, Peoples R China
Gao, Jiaxin
Wang, Mingwei
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Jilin Univ, Coll Mat Sci & Engn, Changchun 130025, Peoples R China
Jilin Univ, Roll Forging Res Inst, Changchun 130025, Peoples R ChinaJilin Univ, Coll Mat Sci & Engn, Changchun 130025, Peoples R China
Wang, Mingwei
Li, Li
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Jilin Univ, Coll Mat Sci & Engn, Changchun 130025, Peoples R ChinaJilin Univ, Coll Mat Sci & Engn, Changchun 130025, Peoples R China