Abstract
Static and dynamic crush tests on a thin-walled prismatic column are described taking into account imperfections. The crushing process is regarded as a stochastic one and the results of measurements are reduced using the probability methods. Three different definitions of the mean dynamic crushing force are discussed and only one of these is shown to yield simple and reliable results. The correlation between the static and dynamic crushing force is also presented. The results obtained may be used in designing energy-absorbing supporting structures for bus safety bumpers.References
T. AKERSTROM, T. WIERZBICKI, Dynamic crushing of strain rate sensitive box columns, Second International Conference of Vehicle Structural Mechanics, Michigan Inn, Southfield, Michigan, April IS-20, 1977.
Y. OHKUBO, T. ARAMATSU, K, SHIRASAWA, Meane crushing strength of closed-hat section members, SAE Paper 740040.
A.WIMMER, Einfluss der Belastungsgeschwindigkeit auf das Festlgkeits und VerJormungsverhalten von Blechkonstruktionen am Beispiel von Kraft-fahrzeugen, ATZ, 77, 10, pp; 281-286, 1975.
M. SHIBUSAWA, T. TAKANO, S. OSHITA, Buckling behaviour of members of vehicle structure, J.S.A.E Japan, 27, 5, pp 510-519, 1973.
M. YAMAYA, M. TANI, Energy absorption by the plastic deformation. of sheet metal columns with box-shaped cross section, Mits. Techn. Rev. 8, pp. 59-66, 1971.
Y. OHKUBO, T. ARAMATSU, K, SHIRASAWA, Meane crushing strength of closed-hat section members, SAE Paper 740040.
A.WIMMER, Einfluss der Belastungsgeschwindigkeit auf das Festlgkeits und VerJormungsverhalten von Blechkonstruktionen am Beispiel von Kraft-fahrzeugen, ATZ, 77, 10, pp; 281-286, 1975.
M. SHIBUSAWA, T. TAKANO, S. OSHITA, Buckling behaviour of members of vehicle structure, J.S.A.E Japan, 27, 5, pp 510-519, 1973.
M. YAMAYA, M. TANI, Energy absorption by the plastic deformation. of sheet metal columns with box-shaped cross section, Mits. Techn. Rev. 8, pp. 59-66, 1971.
