1985-01-01

Side Impact Testing 856085

Basic parameters that determine the occupant injury gravity, in a side crash are speed and the hit sidewall hardness. These two parameters are intimately linked together, and a full-scale reconstitution of a lateral collision does not permit their separation easily.A method is presented in this paper that uses a subsystem-type test arrangement, reproducing the physical lateral shock sequence while having the two parameters separated. It then becomes possible to show the role played by different elements involved in a real-life impact: impacting vehicle deformable front end part; impacted vehicle structure at the door inner panel, where deformability plays an energy-absorbing role; and impacted vehicle structure at the body side, where side speed is rigidity-dependent.As a result of these tests, a subsystem test procedure should take into account the impacted vehicle side structure rigidity, and use a flexible prop fixed to the body, for the impact phase with a side impactor.

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