Abstract
This study proposes a composite energy-absorbing structure for used in subway vehicles and investigates its collision performance through experiments and numerical simulations. The structure is described in detail and primarily consists of a front-end plate; square, thin-walled diaphragm; aluminum honeycomb structure; rear-end plate; and guide rail. In this study, a finite element (FE) model of the composite energy-absorbing structure was created and validated by experimental data. Based on the validated FE model of the composite energy-absorbing structure, the influence of the tube thickness and honeycomb material parameters on the crashworthiness of the composite energy-absorbing structure was analyzed in an LS-DYNA simulation environment. The results showed that the proposed structure provides a controllable crashing pattern that maximizes energy absorption and minimizes the peak forces during a collision. The tube thickness and honeycomb parameters affect the energy absorption of the composite structure. The results also indicated that as the thickness or honeycomb yield strength increase, the initial peak force and average crashing force increase, whereas the energy absorption does not follow the same trend.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
