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The
Pliers Underride Guard
TEST CONDITIONS:
Closing speed: 64 km/h or 40 m.p.h.
Contact surface: 50% offset impact on driver's side.
Frontal car height reduced to simulate panic braking
Car: Chevrolet Vectra (mass = 1,490 kg)
Truck: Mercedes-Benz LK-1217 (mass = 10,000 kg)
GUARD FEATURES:
Height from the Ground: 215 mm ( 8.46 inches)
Mounted flush wiht the rear end of the truck bed
Guard designed at UNICAMP and constructed by MASTRA.
Tested at the experimental facilities of GENERAL MOTORS DO BRAZIL in
Indaiatuba - Brazil, which also donated the Vectra Car and the time and
skills of their engineers.
ALL DETAILS CAN BE FOUND IN SAE TECHNICAL PAPER 982879.
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Click on the pictures to enlarge them!
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Rear view of the
truck with the pliers underride guard before the crash test
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Relative heights
of the car front bumper and the pliers underride guard. Ground clearance
= 215 mm (8.46 inches)
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Side view of the
deformed chassis main beam
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The relative position
of both vehicles. The truck was pushed some 110 cm, although brakes were
applied and the total mass was 10 ton! Windshield not touched and doors
easily opened!
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Internal view of
the car showing no deformation on the panel
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Front view of the
car, showing the "bitten area" by the "pliers effect" of the conceptual
underride guard
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