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原文传递 CRASH TEST BETWEEN A 6 -KG/M U-CHANNEL SIGN SUPPORT AND A 1997 GEO METRO: FOIL TEST NUMBER 99F007

题名：	CRASH TEST BETWEEN A 6 -KG/M U-CHANNEL SIGN SUPPORT AND A 1997 GEO METRO: FOIL TEST NUMBER 99F007
作者：	Christopher M. Brown
关键词：	Geo Metro, acceleration, FOIL, sign support, occupant impact velocity, ridedown acceleration, NCHRP Report 350
摘要：	This report contains the test procedures followed and test results from one crash test between a 1997 Geo Metro and a single-leg small sign support. The test was conducted at the Federal Highway Administration's (FHWA) Federal Outdoor Impact Laboratory (FOIL) located at the Turner-Fairbank Highway Research Center (TFHRC) in McLean, Virginia. The target test speed for the test was 100 km/h and the target test inertial weight was 820 kg. A dummy was not used in this crash test. The test was conducted to provide data for validating a finite element model (FEM) of a Geo Metro and to investigate the potential for windshield penetration by the sign support after fracture. Computer simulations using the latest FEM of a Geo Metro indicated that windshield penetration was possible while striking a small sign support with a sign panel mounting height of 1,525 mm. The test results were unable to verify the simulation's prediction that if a Geo Metro struck this particular sign support design there was a high probability of windshield penetration or severe windshield/roof damage. This result may have occurred because the material properties of the FEM sign post did not match those of the actual sign post. Because the post did not fracture, other important safety performance measures including predictability of device activation and longitudinal occupant impact velocity, did not meet the safety performance criteria specified in the National Cooperative Highway Research Program (NCHRP) Report 350, test designation 3-61. The data and high-speed film coverage will aid in the continuing evolution of the Geo Metro FEM.
报告类型：	科技报告