Meshless TL and UL approaches for large deformation analysis

Gu, YuanTong (2010) Meshless TL and UL approaches for large deformation analysis. Advanced Materials Research, 139 -(141), pp. 893-896.

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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 the UL approach than using in the TL approach.

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ID Code: 39856
Item Type: Journal Article
Refereed: Yes
Keywords: Finite Element Method (FEM), Large Deformation, Meshless, Metal Forming, TL, UL
DOI: 10.4028/
ISSN: 1022-6680
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Numerical Modelling and Mechanical Characterisation (091307)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Statement: All rights reserved. No part of contents of this paper may be reproduced or transmitted in any form or by any means without the written permission of TTP,
Deposited On: 09 Feb 2011 01:56
Last Modified: 29 Feb 2012 14:28

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