Browse Publications Technical Papers 2004-01-0691
2004-03-08

Finite Element Modeling of Spot Weld Connections In Crash Applications 2004-01-0691

Spot welding is the primary joining method used for the construction of the automotive body structure made of steel. A major challenge in the crash simulation today is the lack of a simple yet reliable modeling approach to characterize spot weld separation. In this paper, an attempt has been made to develop a spot weld modeling methodology to characterize spot weld separation in crash simulation. A generalized two-node spring element with 6 DOF at each node is used to characterize the spot weld nugget. To represent the connection of the nugget with the surrounding plates, tied contacts are defined between the spring element nodes and the shell elements of the plate. Three general separation criteria are proposed for the spot weld that include the effects of speed and coupled loading conditions. The separation criteria are implemented into a commercially available explicit finite element code. A simple and direct method of determining modeling parameters of spot weld from component test data is also discussed.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Robust Design of Front Impact Crash Simulation with FEM by Taking Account of Manufacturing Quality on Spot Weld

2006-01-0761

View Details

TECHNICAL PAPER

Determination of Spot Weld Modeling Parameters from Test Data for Finite Element Crash Simulation

2004-01-0692

View Details

TECHNICAL PAPER

Resistance Spot Weldability of Three Metal Stack Dual Phase 600 Hot-dipped Galvanized Steel

2007-01-1363

View Details

X