Finite element simulations of sheet metal forming under complex strain paths |
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Authors: | Chen Wei Yang Jichang Wu Xiaofeng Lu Dun and Guo Weigang |
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Affiliation: | (1) College of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, China |
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Abstract: | Fracture is a common defect in sheet metal forming and it is essentially caused by tensile instability. This paper analyzes
some experiments and theories for building forming limit diagrams of sheet metal and points out the advantages and disadvantages
of current experiments and theories. According to this, a method that integrates the finite element simulation and experiment
was used to research the forming limit diagrams of the sheet metal under complex strain paths. Taking the rear hanger that
undergoes twice stamping as an example, the strain paths of the dangerous point of the rear hanger is investigated. Finally,
the forming method of the rear hanger is confirmed. Results indicate that finite element method (FEM) can achieve the complex
strain paths and different strain paths will have great impacts on the result of the sheet metal forming.
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Translated from Journal of Jiangsu University (Natural Science Edition), 2005, 26(4): 289–293 译自: 江苏大学学报 (自然科学版)] |
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Keywords: | complex strain paths sheet metal forming finite element simulations |
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