Numerical and Experimental Approach for Rectangular Cup of Li-Ion Battery Container with Extreme Aspect Ratio

2007 ◽  
Vol 340-341 ◽  
pp. 689-694 ◽  
Author(s):  
Tae Wan Ku ◽  
Ho Yeun Ryu ◽  
June Key Lee ◽  
Beom Soo Kang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Drawing Process ◽  
Element Analysis ◽  
Multi Stage ◽  
Analysis Scheme ◽  
Narrow Width ◽  
Series Of Experiments ◽  
Li Ion ◽  
Good Agreement

The main goal of this study was to develop the technique of process design and manufacturing for a rectangular deep drawn cup with very narrow width by using finite element analysis scheme and a series of experiments. The manufacturing process of this rectangular cup required several intermediate steps to generate the final shape. The multi-stage deep drawing process was applied to finite element analysis, and a continuous progressive press was employed in a series of experiments. Final specifications of the rectangular deep drawn cup were length of 33.70mm, height of 48.30mm and width of 3.46mm, respectively. In this study, finite element analysis for this drawing process was carried out from the first to the seventh stage, and a series of practical experiment was performed. These simulated results of the rectangular cup were compared with the prototypes of the experiments in view of the deformed shape in each mid-part. The results of finite element analysis showed good agreement with those from the experiments.

Burst Pressure of Pressurized Cylinders With Hillside Nozzle

2009 ◽  
Vol 131 (4) ◽  
Author(s):  
H. F. Wang ◽  
Z. F. Sang ◽  
L. P. Xue ◽  
G. E. O. Widera
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Experimental Models ◽  
Burst Pressure ◽  
Element Analysis ◽  
Test Models ◽  
Scale Test ◽  
Failure Location ◽  
Dimensional Instability ◽  
Good Agreement

The burst pressure of cylinders with hillside nozzle is determined using both experimental and finite element analysis (FEA) approaches. Three full-scale test models with different angles of the hillside nozzle were designed and fabricated specifically for a hydrostatic test in which the cylinders were pressurized with water. 3D static nonlinear finite element simulations of the experimental models were performed to obtain the burst pressures. The burst pressure is defined as the internal pressure for which the structure approaches dimensional instability, i.e., unbounded strain for a small increment in pressure. Good agreement between the predicted and measured burst pressures shows that elastic-plastic finite element analysis is a viable option to estimate the burst pressure of the cylinders with hillside nozzles. The preliminary results also suggest that the failure location is near the longitudinal plane of the cylinder-nozzle intersection and that the burst pressure increases slightly with an increment in the angle of the hillside nozzle.

Design Optimization of the Aerial Lift Boom through the Finite-Element Analysis (FEA)

2011 ◽  
Vol 295-297 ◽  
pp. 1564-1567
Author(s):  
Yong Hong ◽  
Seokjun Yu ◽  
Jaejung Lee ◽  
Hyeonsu Ha ◽  
Dong Pyo Hong
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Design Optimization ◽  
Experimental Method ◽  
General Purpose ◽  
Element Analysis ◽  
Actual Experiment ◽  
Multi Stage ◽  
The Finite Element Analysis ◽  
Aerial Platform

The multi-stage boom consisting of several booms is used in order to develop the aerial platform truck that can be used in a working radius that is higher and safe. Because the length increases compared with the width or the height of the structure, the intensity and rigidity are lowered along with the safety. Accordingly, a countermeasure is needed. Therefore, in this research, when designing of the high ground work difference Boom System, the safety the stress of the considered boom the analyze method and experimental method tries to be evaluated through the comparison. The finite-element analysis(FEA) compared the Strain value which is obtained through the resolution value and actual experiment by using the Ansys,that is the general purpose program, and proved this safety.

Die design by a void index in multi-pass drawing

2002 ◽  
Vol 216 (11) ◽  
pp. 1043-1049 ◽  
Author(s):  
T Kuboki ◽  
H Furuta ◽  
H Yoshikawa ◽  
Y Neishi ◽  
M Akiyama
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Numerical Analysis ◽  
Void Fraction ◽  
Void Growth ◽  
Cold Working ◽  
Die Design ◽  
Element Analysis ◽  
Series Of Experiments

Die design was optimized for suppressing the void growth in multi-pass drawing. The void index to evaluate the void fraction in multi-pass drawing was first proposed, based on the well-known equation to predict the fracture limit in cold working. Using finite element analysis, the influence of die geometries on the void index was investigated and dies were designed to have the effect of suppressing void with the least minimum die length. A series of experiments was then carried out to verify the validity of the numerical analysis. The densities of drawn bars were measured and voids in microstructures were observed to verify the validity of the proposed void index.

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