Lagrangian Methods of Finite Element Simulations in Sheet Metal Forming Process

Lei Chen; Hui Qin Chen; Zhi Hua Li; Qiao Yi Wang

doi:10.4028/www.scientific.net/AMM.563.3

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Lagrangian Methods of Finite Element Simulations in Sheet Metal Forming Process
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 563Lagrangian Methods of Finite Element Simulations...

Lagrangian Methods of Finite Element Simulations in Sheet Metal Forming Process

Abstract:

Simulation method has become an increasing important problem to establish the trustworthiness of models in the finite element simulations. Finite element models in sheet metal forming, which involves large deformations, large displacement and friction, are uncertainly with different methods. Finite element models based on different Lagrangian methods have been used to analyze the deep drawing process. The tools are modeled as rigid surfaces. The blank is modeled as a deformable body. The interaction of sliding surfaces is modeled with a modified Coulomb friction law. The Finite element results of strain and thickness distributions are validated by comparison with the experiment. It is shown that the main difference of Total Lagrangian formulation (T.L.) and Updated Lagrangian formulation (U.L.) lies in the large displacement and deformation, whilst agree well with small displacement and deformation.

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Applied Mechanics and Materials (Volume 563)

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3-6

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.563.3

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Online since:

May 2014

Authors:

Lei Chen*, Hui Qin Chen, Zhi Hua Li, Qiao Yi Wang

Keywords:

Finite Element Method (FEM), Lagrangian Method, Sheet Metal Forming

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