Performance Modeling

The difference in weld metal and base metal property can dictate the performance of the overall weld. In certain cases, these differential effects can be predicted very easily using analytical formulations.


Stress/Strain Data
Prediction of Stress-Strain Curves as a function of Microstructure: The online tool calculates the stress-strain curves (yield strength, ultimate tensile strength, and elongation%) as a function of different ferrite morphologies in two automotive (DQSK and DF140) steels. Use the Stress-Strain Curve for Steel tool.

Spot Weld Failure
Prediction of Low-Alloy Steel Spot Weld Failure Modes: Online tool calculates the failure modes as a function of base metal, weld metal properties and the geometry of the weld nugget. The pull-out mode indicates the failure in the base metal and the shear mode indicates the failure in the weld metal region.
Use the Weld Failure in Spot Welds tool.
 



The on-line calculations are for educational purposes only and are based on published work in the literature. Some of the modules were developed at Oak Ridge National Laboratory (ORNL) and have been made available to EWI members as a part of the memorandum of understanding between ORNL and EWI. For additional information, please contact Edison Welding Institute