Browse Publications Technical Papers 2002-01-0680

Analysis of Compressive and Bending Collapse of the Vehicle Structure 2002-01-0680

The focus of this research is to analyze the mechanism of the compressive and bending collapse for a thin-walled box beam taking into consideration its initial imperfection, which represents a part of the vehicle structures under a high speed crash test, by using the Finite Element (FE) Method.
According to our analysis in high-speed crash tests, most of the vehicle structures are damaged by compression and bending. We approached these problems by simplifying the vehicle structure in analysis to the thin-walled box beam to analyze crash behavior under compression and bending conditions by using the FE Method. We mainly examined the stress distribution and behavior of collapse of the box beam with the effective area method.
As a result of this research, it is recognized that the beginning of collapse is elastic buckling. And also, it could be divided into two different areas such as an effective area and ineffective area, and these areas are clearly discerned on the box beam under compression and bending. In addition, it is examined that the effective area has a strong relationship with steel type and dimension that could be formulated. Comparing this equation result and the FE Method, the results show there is a potential for predicting the collapse force. It is concluded our research that considering the effective steel type and dimension by using our equation further improvement of the technique of reinforcement for the vehicle structures can be attained.


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


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:

Upper Body Coordination in Reach Movements


View Details


A Statistical Analysis of Vehicle Rollover Propensity and Vehicle Stability


View Details


A Comparison of the Safety Performance of Aluminum and Steel in Conventional Automotive Construction


View Details