Title :
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
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;
Conference_Titel :
Information and Computing Science, 2009. ICIC '09. Second International Conference on
Conference_Location :
Manchester
Print_ISBN :
978-0-7695-3634-7
DOI :
10.1109/ICIC.2009.333
