Browse Publications Technical Papers 932377
1993-09-01

An Energy Approach to Nonlinear Analysis of Roll Bars 932377

Roll bars are currently a primary source of operator protection for recreational vehicles, for certain lawn and garden tractors and for small agricultural tractors. In this paper we describe a family of nonlinear models to predict the large deflection response of a roll bar due to yielding of the material. This yielding permits the structure to absorb energy.
The stress-strain relationship employs a power law model. Subsequent calculation of the complementary energy stored in the structure and application of Castigliano's second theorem yield the deflection at the point of loading.
To demonstrate the feasibility of this energy method in the simulation of testing of roll bars, we present numerical results for the side, vertical, and fore-aft loading cases. Results include the load-deflection response for each load case as well as the strain energy stored in the roll bar as it deforms.

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

COMPARISON OF THE BEHAVIOR OF ARTICULATED RECREATIONAL VEHICLES WITH EITHER FIXED OR POSITION CONTROL OF STEERING

800158

View Details

TECHNICAL PAPER

Study of Roll Motions in Highly-Filled Tank Trucks Using Minimum Instrumentation

2005-01-2264

View Details

JOURNAL ARTICLE

Understanding Driver Perceptions of a Vehicle to Vehicle (V2V) Communication System Using a Test Track Demonstration

2011-01-0577

View Details

X