Rigid Angular Impact Responses of a Generic Steel Vehicle Front Bumper and Crush Can: Correlation of Two Velocity-Measurement Techniques

摘要: This study presents experimental investigations of generic steel vehicle front bumper and crush can (FBCC) assemblies subjected to a 30° front-angular impact. There is lack studies regarding component level tests with FBCCs. As vehicles aim decrease weight by applying lighter-weight material structures, become important. Computer aided models will then be valuable tools assess performance these structures. Thus, novel test procedure aid in CAE correlation. A sled-on-sled testing method was used perform all the reported here. Impact speed optimized minimize bottoming-out force for this type test. The impactor-sled obtained based on two measurement techniques, namely: high-speed cameras accelerometers. Several were at different locations. sled motions monitored using video targets. triaxial accelerometer system utilized measure off-axis accelerations sled-beam. results showed that good correlation exists between methods measuring velocity. data generate force-time history plots Newton’s second law. force-displacement curves from FBCC specimens consistent agreement respect each other low coefficient variation calculated.