If deceleration is constant in a vehicle crash, deformation of the vehicle is a function of impact speed and impact duration. The ratio of actual deformation to this idealized quantity may be used to summarize the shape and effects of the deceleration pulse. This ratio reflects whether the pulse is front-loaded (acceleration is greater early in the pulse than later), or back-loaded (acceleration is less early in the pulse than later). Further interpretation of the ratio is possible within simple families of pulse shape, such as M. Huang’s TESW (Tipped Equivalent Square Wave) model and the triangular pulse. This paper reviews published test results and summaries of datasets. It is found that pulses tend to be back-loaded. However, this conclusion is sensitive to how deformation, speed, and duration are calculated.
Full Frontal Car Crash Tests: Empirical Evidence about Shape of Deceleration Pulses
Int.J Automot. Technol.
International Journal of Automotive Technology ; 22 , 2 ; 383-389
2021-04-01
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Characterization of Frontal Crash Pulses
British Library Conference Proceedings | 2000
|Comparison of frontal crash test pulses
Kraftfahrwesen | 2000
|Comparison of frontal crash test pulses
Tema Archiv | 2000
|Frontal crash protection results considering the full frontal and offset frontal crash in KNCAP
Kraftfahrwesen | 2010
|Optimal crash pulse for minimization of peak occupant deceleration in frontal impact
Kraftfahrwesen | 2006
|