| Autor: |
Paul C. Begeman, A. Seyed Yaghoubi, Omar Faruque, Golam Newaz, Derek Board, Yijung Chen |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
Dynamic Behavior of Materials, Volume 1 ISBN: 9783319069944 |
| Popis: |
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 a lack of studies regarding component level tests with FBCCs. As vehicles aim to decrease weight by applying lighter-weight material to vehicle structures, component level studies become important. Computer aided models will then be valuable tools to assess performance of these structures. Thus, a novel component level test procedure is valuable to aid in CAE correlation. A sled-on-sled testing method was used to perform all the tests reported here. Impact speed was optimized to minimize bottoming-out force for this type of test. The speed of the impactor-sled was obtained based on two measurement techniques, namely: high-speed cameras and accelerometers. Several high-speed cameras were used at different locations. The sled and bumper motions were monitored using video targets. A triaxial accelerometer system was utilized to measure off-axis accelerations of the sled-beam. The results showed that good correlation exists between the two methods for measuring the sled velocity. The accelerometer data were used to generate force-time history plots based on Newton’s second law. The force-time history and force-displacement curves from different FBCC specimens were consistent and in good agreement with respect to each other with a low coefficient of variation calculated. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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