strike the target. In order to conduct 30 front-angular tests, a rigid fixture was built with a base angle of 30 and bolted to the base plate (Fig. 37.2a). The FBCC sample was then installed on the fixture (Fig. 37.2b). A beam that was supported by a rigid post was mounted vertically on the impactor-sled (Fig. 37.1). The center of the beam was aligned with the center of the FBCC structure and the bottom edge of the beam was positioned slightly lower than the bottom edge of the bumper. The distances between the snubbers (Fig. 37.2b) and the platform-sled (Fig. 37.1) were checked to make sure that they were equal. This would cause the impact to be normal and the right and left snubbers to be compressed simultaneously during the test. Therefore, the impact event would be symmetric. Four high-speed cameras (HSCs) were used in this study as illustrated in Fig. 37.3. For all the cameras some pre-trigger values were used. Cameras #1 (1,000 fps) and #4 (5,000 fps) were utilized to obtain global right-lateral and zoomed-in left-lateral (i.e. bottom can) views of the FBCC sample, respectively. The top-views Fig. 37.1 Sled-on-sled impact test setup Fig. 37.2 A30 rigid fixture (a), and an FBCC sample mounted on the fixture (b) 250 A. Seyed Yaghoubi et al.
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