Browse Publications Technical Papers 2007-01-0731
2007-04-16

Estimation of Frontal Crush Stiffness Coefficients for Car-to-Heavy Truck Underride Collisions 2007-01-0731

The first objective of this paper was to evaluate a public domain finite element (FE) model of a 1990 Ford Taurus from the perspective of crush energy absorption. The validity of the FE model was examined by first comparing simulation results to several published full-frontal crash tests. Secondly, the suitability of the model for underride simulation was evaluated against two series of full-scale crash tests into vertically offset rigid barriers.
Next, the evaluated FE model was used to pursue the main objective of this work, namely to develop an approach for estimating underride crush energy. The linear-spring methodology was adopted whereby the underride crush stiffness was determined by relating the residual upper radiator support deformation to crush energy. An underride crush stiffness estimation method was proposed based on modifying the full-frontal stiffness coefficients. The method was further simplified into a “Rule-of-Thumb” estimation method, and an example of its application was provided along with a discussion of its estimation accuracy.

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

Crush Energy Assessment in Frontal Underride/Override Crashes

2009-01-0105

View Details

TECHNICAL PAPER

Override/Underride Crush Energy: Results from Vertically Offset Barrier Impacts

2005-01-1202

View Details

TECHNICAL PAPER

Computational Consideration of Crush Energy Estimation in Frontal Collisions with Underride and Lateral Offset

2012-01-0595

View Details

X