Abstract
Humidity reportedly causes a scatter of maximum acceleration in a dynamic certification test using a Transport Research Laboratory (TRL) legform impcator according to the European Enhanced Vehicle-safety Committee /WG17 method. The possibility was considered that humidity might affect the injury criteria for the TRL legform impactor to bumper impact test. To clarify the differences in the maximum acceleration of the impactor in different humidity conditions, a dynamic certification test and the legform impactor to bumper impact test were conducted in two different humidity conditions (30%RH and 60%RH). In the dynamic certification test, the maximum acceleration and shear displacement used were not the same in the two humidity conditions. In the legform impactor to bumper impact test, the measured injury criteria used were the same in the two humidity conditions. The results indicated that the humidity condition affect two of three injury criteria in the dynamic certification test. On the other hand, the results also indicated that the humidity condition does not affect all injury criteria in the legform impactor to bumper impact test.
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