Quantification of Variability on the Prediction of Weld Durability in Automotive Components 2002-01-1264
Fatigue has been one of the main causes of failure in automotive components since the industry's beginnings. As the fatigue phenomenon is very complex and has a high degree of variability designs have traditionally been over-engineered, resulting in an increase in weight and cost.
This paper investigates the predictability of the fatigue failure process in MIG welded joints due to the variability of the welding production process and the consequent uncertainty of the notch factor of the critical zone located at the transition line between the weld bead and the work piece. The study focuses on exhaust systems for cars, but the procedure and concepts presented here can be applied to any type of welded element.
Citation: Fernández, I., García, J., and Salvatella, M., "Quantification of Variability on the Prediction of Weld Durability in Automotive Components," SAE Technical Paper 2002-01-1264, 2002, https://doi.org/10.4271/2002-01-1264. Download Citation
Author(s):
I. Fernández, J.J. García, M. Salvatella
Affiliated:
IDIADA Automotive Technology
Pages: 9
Event:
SAE 2002 World Congress & Exhibition
Automotive and Transportation Technology Congress and Exposition
