Study on contact algorithm of dynamic explicit FEM for sheet forming simulation

2001 ◽  
Vol 6 (3) ◽  
pp. 704-708
Author(s):  
Zhang Hai-ming ◽  
Dong Xiang-huai ◽  
Li Zhi-gang
Keyword(s):  
Sheet Forming ◽  
Forming Simulation ◽  
Contact Algorithm

Topology Optimization of Blank Geometry for the Sheet Forming Process

2012 ◽  
Author(s):  
Saber DorMohammadi ◽  
Mohammad Rouhi ◽  
Masoud Rais-Rohani
Keyword(s):  
Topology Optimization ◽  
Volume Fraction ◽  
Structural Response ◽  
Sheet Forming ◽  
Forming Process ◽  
Exchange Method ◽  
Forming Simulation ◽  
Blank Shape Optimization ◽  
Blank Shape ◽  
Consistent Subset

The newly developed element exchange method (EEM) for topology optimization is applied to the problem of blank shape optimization for the sheet-forming process. EEM uses a series of stochastic operations guided by the structural response of the model to switch solid and void elements in a given domain to minimize the objective function while maintaining the specified volume fraction. In application of EEM to blank optimization, a sheet forming simulation model is developed using Abaqus/Explicit. With the goal of minimizing the variability in wall thickness of the formed component, a subset of solid (i.e., high density) elements with the highest increase in thickness is exchanged with a consistent subset of void (i.e., low density) elements having the highest decrease in thickness so that the volume fraction remains constant. The EEM operations coupled with finite element simulations are repeated until the optimum blank geometry (i.e., boundary and initial thickness) is found. The developed numerical framework is applied to blank optimization of a benchmark problem. The results show that EEM is successful in generating the optimum blank geometry efficiently and accurately.

Improved contact procedure for implicit finite element sheet forming simulation

2010 ◽  
Vol 83 (13) ◽  
pp. 1759-1779 ◽  
Author(s):  
S. Zhuang ◽  
M. G. Lee ◽  
Y. T. Keum ◽  
J. H. Kim ◽  
R. H. Wagoner
Keyword(s):  
Finite Element ◽  
Sheet Forming ◽  
Forming Simulation

Equivalent drawbead models for sheet forming simulation

2010 ◽  
Vol 16 (4) ◽  
pp. 595-603 ◽  
Author(s):  
S. J. Moon ◽  
M. G. Lee ◽  
S. H. Lee ◽  
Y. T. Keum
Keyword(s):  
Sheet Forming ◽  
Forming Simulation

Integrating the Results of Sheet Forming Simulation in Crashworthiness

2003 ◽  
Author(s):  
Jorge Paiva Abrantes ◽  
Marcos Antonio Argentino ◽  
Antonio Carlos da Costa Gonçalves ◽  
José Cássio Mezzetti Correa
Keyword(s):  
Sheet Forming ◽  
Forming Simulation

Sheet Forming Simulation Using Static FEM Program Coupled with Elastic Deformation of Tools

2003 ◽  
Vol 2003.16 (0) ◽  
pp. 589-590
Author(s):  
Masato TAKAMURA ◽  
Kenichi OHURA ◽  
Hideyuki SUNAGA ◽  
Akitake MAKINOUCHI ◽  
Cristian TEODOSIU
Keyword(s):  
Elastic Deformation ◽  
Sheet Forming ◽  
Forming Simulation
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