Meshless TL and UL Approaches for Large Deformation Analysis

Yuan Tong Gu

doi:10.4028/www.scientific.net/AMR.139-141.893

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 139-141Meshless TL and UL Approaches for Large...

Meshless TL and UL Approaches for Large Deformation Analysis

Abstract:

To accurately and effectively simulate large deformation is one of the major challenges in numerical modeling of metal forming. In this paper, an adaptive local meshless formulation based on the meshless shape functions and the local weak-form is developed for the large deformation analysis. Total Lagrangian (TL) and the Updated Lagrangian (UL) approaches are used and thoroughly compared each other in computational efficiency and accuracy. It has been found that the developed meshless technique provides a superior performance to the conventional FEM in dealing with large deformation problems for metal forming. In addition, the TL has better computational efficiency than the UL. However, the adaptive analysis is much more efficient using in the UL approach than using in the TL approach.

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Periodical:

Advanced Materials Research (Volumes 139-141)

Pages:

893-896

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.139-141.893

Citation:

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Online since:

October 2010

Authors:

Yuan Tong Gu

Keywords:

Finite Element Model (FEM), Large Deformation, Meshless, Metal Forming, TL, UL

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