Accuracy improvement for linear tetrahedral finite element by means of virtual mesh refinement / Sugeng Waluyo

Waluyo, Sugeng (2015) Accuracy improvement for linear tetrahedral finite element by means of virtual mesh refinement / Sugeng Waluyo. Journal of Mechanical Engineering (JMechE), 12 (1). pp. 19-30. ISSN 1823-5514 ; 2550-164X

Abstract

This paper offers a new strategy to improve accuracy on deformation field of linear 4-node tetrahedral finite elements (FE) commonly used in computer aided engineering (CAE) software by means of virtual mesh refinement (VMR). Here, the improvement is achieved by embodying additional virtual strain energy to the FE instead of using physical mesh refinement in particular domains. In this early development only total strain energy of elements in the domains after simulation is used to assess convergence during the VMR process. Finally, two benchmarking studies, i.e., classical cantilever beam and thin shell torsion, are used to test the ability of the method to solve shear dominated problems in large and small deformation, respectively. From the studies, improvements in the deformation accuracy by order of 200% are observed.

Metadata

Item Type: Article
Creators:
Creators
Email / ID Num.
Waluyo, Sugeng
UNSPECIFIED
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Mechanical Engineering
Journal or Publication Title: Journal of Mechanical Engineering (JMechE)
UiTM Journal Collections: UiTM Journal > Journal of Mechanical Engineering (JMechE)
ISSN: 1823-5514 ; 2550-164X
Volume: 12
Number: 1
Page Range: pp. 19-30
Keywords: Tetrahedral, finite elements, VMR, strain energy, convergence
Date: 2015
URI: https://ir.uitm.edu.my/id/eprint/17642
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