Evaluation of a Solitary Front Bumper Design for a Midsize Vehicle 931031

Finite-element analyses were used to develop an injection-molded one-piece bumper system for the front bumper of a midsize vehicle (1350 to 1450 Kg). The method used in design was to first examine the performance using linear equations related to four-point bending of abeam. Using results from the initial calculations, a design to fit in a generalized package space was developed and then analyzed for structural integrity in barrier impacts. Results from detailed finite-element analyses were used in further design iterations, and a final design concept was analyzed in all required bumper impacts, excluding corner.
It will be shown that based on package space, deflection requirements, and rail load requirements, an injection-molded one-piece bumper system such as the one presented here should offer acceptable performance while reducing weight and number of parts.


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


Members save up to 40% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.