1997-02-24

Static and Dynamic Dent Resistance Performance of Automotive Steel Body Panels 970158

In recent years, strict weight reduction targets have pushed auto manufacturers to use lighter gauge sheet steels in all areas of the vehicle including exterior body panels. As sheet metal thicknesses are reduced, dentability of body panels becomes of increasing concern. Thus, the goal becomes one of reducing sheet metal thickness while maintaining acceptable dent resistance. Most prior work in this area has focused on quasi-static loading conditions. In this study, both quasi-static and dynamic dent tests are evaluated. Fully assembled doors made from mild, medium strength bake hardenable and non-bake hardenable steels are examined. The quasi-static dent test is run at a test speed of 0.1 m/minute while the dynamic dent test is run at a test speed of 26.8 m/minute. Dynamic dent testing is of interest because it more closely approximates real life denting conditions such as in-plant handling and transit damage, and parking lot damage from car door and shopping cart impact. The dent resistance performance of the three steel types are examined and compared for both static and dynamic test conditions.

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

InCar - Advanced High Strength Steel Tailored Tube Longitudinal Members

2011-01-1061

View Details

TECHNICAL PAPER

Best of Both Metals in Body Parts Light Weight Concepts for a Hood

1999-01-3197

View Details

TECHNICAL PAPER

Monitoring the Effect of RSW Pulsing on AHSS using FEA (SORPAS) Software

2007-01-1370

View Details

X