Modified Four-Node Isoparametric Element to Improve the Accuracy of One Step Forming

Author

Lu, Shanbin ; Zhang, Junyuan ; Ye, Hui

Author_Institution

State Key Lab. of Automobile Dynamic Simulation, Jilin Univ., Changchun, China

Volume

4

fYear

2009

fDate

21-22 May 2009

Firstpage

96

Lastpage

98

Abstract

The element warpage which was caused by condition that the four nodes of spacial quadrilateral element may not be coplanar affects stiffness matrix and nodal force vector of element. In order to improve the simulation accuracy, the modified four-node isoparametric membrane element was applied to one step forming. The computer program was also implemented. The simulation result of wheel cover strengthen panel was compared with the experimental one. It is found that the method can obtain favorable effectiveness.

Keywords

automobile manufacture; elastoplasticity; finite element analysis; forming processes; production engineering computing; elasto-plastic finite element method; element warpage; modified four-node isoparametric element; nodal force vector; one step forming; sheet metal forming simulation technology; spacial quadrilateral element; stiffness matrix; wheel cover strengthen panel; Algorithm design and analysis; Analytical models; Automobiles; Biomembranes; Computational modeling; Deformable models; Finite element methods; Laboratories; Shape; Wheels; isoparametric; one-step forming; total theory; warpage modification;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Computing Science, 2009. ICIC '09. Second International Conference on

Conference_Location

Manchester

Print_ISBN

978-0-7695-3634-7

Type

conf

DOI

10.1109/ICIC.2009.333

Filename

5169133