Investigations of Honeycomb and Foam structures of Automotive Front rails During Frontal crashes and its affinity with Optimum Energy Absorption
2022-01-1049
03/29/2022
- Event
- Content
- Energy dissipation in frontal crash of the vehicles normally occurs through the deformation in the engine compartment zone and especially on longitudinal front rails. In this article, the details of the crash tests is presented which involves an interpretation of the damage profiles and understanding the origin of the stiffness coefficients in main particular member which is front rails of a passenger vehicle. Moreover, the present experimental work is used to estimate the energy dissipated during deformation based on crush measurements. Furthermore, it explains the implementation of experimental test to investigate the influence of design characteristics on the deformation behavior of the proposed front rails. The current experimental work deals with the influences of geometric shape modifications of conventional steel members with flange configurations compared to honeycomb structures and structural foam with the same members length. The observations in this work led to conclude the values of the stiffness and the energy absorption for various shapes of longitudinal front rails. The designs for various shapes of the front rail that gave the maximum energy absorption values are stated, thus it aims to achieve improved level of crashworthiness of the vehicle structure when implemented.
- Citation
- Elhussieny, S., and Oraby, W., "Investigations of Honeycomb and Foam structures of Automotive Front rails During Frontal crashes and its affinity with Optimum Energy Absorption," SAE Technical Paper 2022-01-1049, 2022, .