Browse Publications Technical Papers 2013-01-1208
2013-04-08

A Fatigue Prediction Method for Spot Welded Joints 2013-01-1208

Generally linear finite element analysis (FEA) is used to predict fatigue life of spot welded joints in a vehicle body structure. Therefore, the effect of plastic deformation at the vicinity of the spot welded joints is not included on fatigue prediction. This study introduces a simple technique to include the plastic deformation effect without performing elastic-plastic finite element analysis. The S-N curve obtained from fatigue test results is modified to consider this effect. Tensile strength test results of spot welded joint specimens were utilized to find the load range for FEA equivalent to the applied load range for fatigue tests. To demonstrate the proposed approach, fatigue test results of advanced high strength steels (AHSS) for lap-shear and coach peel specimens were used. Both the specimen types were tested at various constant amplitudes with the load ratios of R=0.1 and 0.3.

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

New Methodologies for Efficient and Accurate Fatigue Prediction of Seam Welds

2013-01-1008

View Details

JOURNAL ARTICLE

Fatigue Life Prediction of an Automobile Cradle Mount

2013-01-1009

View Details

TECHNICAL PAPER

Integrated Computational Materials Engineering (ICME) Multi-Scale Model Development for Advanced High Strength Steels

2017-01-0226

View Details

X