Finite element modeling simulation of in-plane forming limit diagrams of sheets containing finite defects

1991 ◽  
Vol 22 (11) ◽  
pp. 2655-2665 ◽  
Author(s):  
K. Narasimhan ◽  
R. H. Wagoner
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Forming Limit ◽  
Forming Limit Diagrams ◽  
Element Modeling ◽  
Modeling Simulation ◽  
Finite Element Modeling Simulation

Piston Finite Element Modeling for the Estimation of Hydrodynamic and Contact Forces and Moments

2006 ◽  
Author(s):  
Andreas P. Panayi ◽  
Harold J. Schock
Keyword(s):  
Finite Element ◽  
Internal Combustion Engine ◽  
Finite Element Modeling ◽  
Mechanical Behavior ◽  
Combustion Engine ◽  
Contact Forces ◽  
Element Modeling ◽  
Modeling Simulation ◽  
Finite Element Modeling Simulation ◽  
Cylinder Bore

Modeling the thermal and mechanical behavior of a piston is crucial, as it allows for the evaluation of piston performance including piston dynamics and friction. These characteristics directly affect the efficiency, reliability, and lifespan of an internal combustion engine. This work migrates from the conventional parameterized piston modeling approach and uses a full CAD finite element modeling simulation for the evaluation of the piston’s thermal and mechanical behavior as well as the resultant hydrodynamic and contact forces and moments experienced by it. The analysis is performed for two different piston to cylinder bore nominal clearances, and for one of them at two different engine speeds, while assuming the piston is moving at the center of the cylinder bore with no transverse or tilting motion.

Reducing Non-Value Added Process for an Automotive Component Using Finite Element Modeling

2012 ◽  
Vol 576 ◽  
pp. 737-741
Author(s):  
Roseleena Jaafar ◽  
Farrahshaida Mohd Salleh ◽  
Izdihar Tharazi ◽  
Abdul Rahman Omar
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Sheet Metal ◽  
Research Work ◽  
Value Added ◽  
Forming Limit ◽  
Low Carbon ◽  
Forming Process ◽  
Automotive Component ◽  
Element Modeling

The research work focuses on sheet metal stamping process simulation of an automotive component known as bracket assembly upper spring made from low carbon steel and has axis-symmetrical cup shape that employs four multi-stage drawing processes. Non-value added drawing stages (optimization process) reduced and portrayed from the formability simulation result using finite element modeling (FEM) method. The modified design, with reduction of one draw stage, showed that the risk of the component to form cracks is lesser, the material elements are further away from the failure zone of the forming limit diagram (FLD) and it meets the requirement for minimum thickness. The FEM simulation was able to predict the formability and optimize the design of a sheet metal forming process that lowered the product cost and improve cycle time.

Exact First Order Finite Element Modeling for Eddy Current NDE

1991 ◽  
Vol 3 (1) ◽  
pp. 235-253 ◽  
Author(s):  
L. D. Philipp ◽  
Q. H. Nguyen ◽  
D. D. Derkacht ◽  
D. J. Lynch ◽  
A. Mahmood
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Eddy Current ◽  
Element Modeling ◽  
First Order ◽  
Eddy Current Nde
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