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The Measurement of Impact Forces under Dynamic Crush using a Drop Tower Test Facility
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English
Abstract
The design of structural components requires a knowledge of their crush characteristics, particularly the load-carrying capacity during dynamic crash. Although many attempts have been made to develop analytical techniques or methods for predicting these characteristics, experimental tests are still needed to provide data for real structures for either development or validation.
This report describes an experimental method for determining the force-deflection characteristics during dynamic crush of square steel columns using a drop tower test facility. The custom-designed load cells were used for the measurements of the impact and the reaction forces at both ends of specimens, which were subjected to a 30 mph impact. Instrumentation for data acquisition and detailed data reduction for analysis are also presented. Dynamic force-deflection data are then verified through energy computations of the total kinetic energy of the system and the resulting energy absorbed by the specimens, which are calculated from measured impact forces and dynamic deflection.
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Authors
Citation
Chou, C., "The Measurement of Impact Forces under Dynamic Crush using a Drop Tower Test Facility," SAE Technical Paper 830467, 1983, https://doi.org/10.4271/830467.Also In
References
- Mahmood, H. F. Paluszny, A. “Design of Thin Walled Column for Crash Energy Management - Their Strength and Mode of Collapse” SAE Paper No. 811302
- Mahmood, H. F. Paluszny, A. “Stability of Plate-Type Box Columns Under Crush Loading,” presented at the ASME 103rd Winter Annual Meeting, Phoenix, Arizona, November 14-19, 1982 Computational Methods in Ground Transportation Vehicle 50 17 33