Browse Publications Technical Papers 2013-01-0389
2013-04-08

Stress Intensity Factor Based Spot Welds Fatigue Life Prediction Model 2013-01-0389

The present paper focuses on fatigue modeling of resistance spot-welded (RSW) joints. Fatigue tests are performed on aluminum RSW joints and fatigue data are generated. Stress intensity factors at nugget circumference are calculated based on loads transferred by weld nugget. An equivalent stress intensity factor Keq is defined and modified to correlate fatigue test results. Keq modified by critical crack length is proven efficient in consolidating a large amount of fatigue data with correlation result significantly improved. Practical potentiality of this model in automobile body structure fatigue analysis is discussed. The proposed model could be readily applied to structure fatigue analysis.

SAE MOBILUS

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

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% 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

Review of CAE Fatigue Analysis Techniques for Spot-Welded High Strength Steel Automotive Structures

2001-01-0835

View Details

TECHNICAL PAPER

Development of a Fatigue Analysis Tool Chain for Automotive Structural Applications

2005-01-0502

View Details

TECHNICAL PAPER

The Effect of High Mileage Spot Weld Degradation on Vehicle Body Joint Stiffness

2001-01-0426

View Details

X