Characteristics of Metal/Composites Bi-Material Tube Beam under Axial Impact Loading

Abstract:

The aluminum (Al) tube beam was reinforced by CFRP, and the low speed impact test was performed with five different lay-up sequences and two different laminate thicknesses. Stable symmetric crushing mode accompanying one or two layers of lobes with plastic hinge were observed in all specimens. Each direction of carbon fibers, parallel, perpendicular, and oblique to the loading direction, offers respective crashworthiness characteristics in the bi-material tube beam, and the characteristics from each direction were mixed when stacked together. The specific energy absorbed (SEA) and crush force efficiency (CFE) were improved simultaneously up to 38% and 30%, respectively in the Al / CFRP bi-material rectangular tube beam with a [0^o/90^o]_2n lay-up sequence compared to the pure Al tube beam.

• Periodical: Applied Mechanics and Materials (Volume 442)
• Pages: 78-82
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.442.78
• Online since: October 2013
• Authors: Chul Kim Hee, Kil Shin Dong, Cheol Shin Kum, Won Jung Ju, Jung Ju Lee*
• Keywords: Axial Impact Loading, Energy Absorption Capability, Metal/Composites Bi-Material

References

[1] H.C. Kim, D.K. Shin, J.J. Lee: Composites Part B: Engineering. Vol. 51(2013), pp.345-358.

[2] S.B. Kim, H. Huh, H. Bok, M. Moon: Journal of Materials Processing Technology. Vol. 211(5) (2011), pp.851-862.

[3] N. Jones. Structural impact: Cambridge University Press; (1989).

[4] W. Abramowicz, N. Jones: International Journal of Impact Engineering. Vol. 2(2) (1984), pp.179-208.