Low Speed Car Impacts with Different Bumper Systems: Correlation of Analytical Model with Tests

980365

02/23/1998

Event
International Congress & Exposition
Authors Abstract
Content
A coordinated test and analysis program was conducted to determine whether a previously proposed, linear, analytical model could be adapted to simulate low speed impacts for vehicles with various combinations of energy absorbing bumpers (EAB). The types of bumper systems impacting one another in our program included, in various combinations; foam, piston and honeycomb systems. Impact speeds varied between 4.2 and 14.4 km/h (2.6 and 9.0 mph) and a total of 16 tests in 6 different combinations were conducted. The results of this study reveal that vehicle accelerations vary approximately linearly with impact velocity for a wide variety of bumper systems and that a linear mass-spring-damping model may be used to efficiently model each vehicle/bumper-system for low speed impacts.
Meta TagsDetails
DOI
https://doi.org/10.4271/980365
Pages
9
Citation
Ojalvo, I., Weber, B., Evensen, D., Szabo, T. et al., "Low Speed Car Impacts with Different Bumper Systems: Correlation of Analytical Model with Tests," SAE Technical Paper 980365, 1998, https://doi.org/10.4271/980365.
Additional Details
Publisher
Published
Feb 23, 1998
Product Code
980365
Content Type
Technical Paper
Language
English