Analysis and Application of the Impact Absorption Behavior of the Composite Tube

Abstract:

Composite tube is one new kind of multi-material shell structures. It has both of metal and composite energy absorption advantage. In order to find the energy absorption characteristic of composite tube and put it into use, the Drop-Weight Tear Test (DWTT) was carried out. The LD2Y aluminum was chosen as the inner metal material which was wrapped fiberglass epoxy composite outside. During the test, the displacement signal and velocity signal, acceleration signal were got by piezoelectric acceleration transducer. Furthermore, the DWTT test of the composite tube was simulated in LS-DYNA, and proved the validity of the model by comparing the simulation results with the experiment results. We established the vehicle front longitudinal beam model with the material type of the composite tube, and carried out the simulations of whole car collisions in LS-DYNA according to FMVSS 208. Through the analysis of occupant head injury got from the simulations, we got the result that using the composite tube material could not only elevate the cars safety but also reduce front longitudinal beam weight effectively.

• Periodical: Applied Mechanics and Materials (Volume 470)
• Pages: 510-515
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.470.510
• Online since: December 2013
• Authors: Zi Peng Zhang, Gui Fan Zhao, Tso Liang Teng*, Yang Wang
• Keywords: Composite Tube, Crash, Drop-Weight Tear, Energy Absorption, Front Longitudina Beam

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