Experimental-Theoretical Correlation of Dynamically Crushed Components of Bus Frame Structure

785124

01/01/1978

Event
17th FISITA Congress (1978), Budapest, Hungary
Authors Abstract
Content
Static and dynamic strength of thin-walled mild steel box columns subjected to axial loading is studied both theoretically and experimentally. A series of impact tests was made using a pendulum hammer experimental facility. The computed dynamic crushing force was always higher than the corresponding static value and the ratio of the two forces /dynamic correction factor/ was shown to be an increasing function of the initial impact velocity. A simple theory is used to predict the average force level and energy absorption of dynamically crushed columns. A good agreement between the theory and present experimental results as well as those of other authors was obtained. A significance of an averaging procedure for a proper interpretation of test results is emphasized. The results obtained are applicable in the preliminary design of energy absorbing members of crushworthy buses and trucks.
Meta TagsDetails
Pages
13
Citation
Wierzbicki, T., Molnár, C., and Matolcsy, M., "Experimental-Theoretical Correlation of Dynamically Crushed Components of Bus Frame Structure," SAE Technical Paper 785124, 1978, .
Additional Details
Publisher
Published
Jan 1, 1978
Product Code
785124
Content Type
Technical Paper
Language
English