Crash Sled Testing of Triaxially Braided CFRP for Improved Vehicular Crashworthiness
Publication: Earth and Space 2021
ABSTRACT
The Impact Dynamics Laboratory at NASA Glenn Research Center recently developed a pneumatically actuated crash sled for investigating the crush behavior of structural elements for vehicular applications. The apparatus includes an adjustable striker mass and specimen support mass, which are mounted on separate rails. This setup provides two advantages over crash sleds with so-called fixed specimen supports: (1) it allows for multiple independent measurements of the crush response using different instruments; and (2) the specimen support can be varied and its reaction can be explicitly measured. This paper describes the experimental setup and data analysis methodology and illustrates the capability of the sled for measuring the specific energy absorption (SEA) of triaxially braided carbon/epoxy composite C-channels and corrugated plates. The corrugated plate had a higher SEA than the C-channel, and the SEAs did not vary when the striker mass and velocity were changed so that incident energy was constant.
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REFERENCES
Carruthers, J. J., Kettle, A. P., and Robinson, A. M. (1998). Energy absorption capability and crashworthiness of composite material structures: A review. Applied Mechanics Reviews, 51(10), 635-649.
Farley, G. L. (1986). Effect of fiber and matrix maximum strain on the energy absorption of composite materials. Journal of Composite Materials, 20(4), 322-334.
Farley, G. L. (1989). Energy-absorption capability and scalability of square cross section composite tube specimens. Journal of the American Helicopter Society, 34(2), 59-62.
Farley, G. L. (1991). The effects of crushing speed on the energy-absorption capability of composite tubes. Journal of Composite Materials, 25(10), 1314-1329.
Garner, D. M., and Adams, D. O. (2008). Test methods for composites crashworthiness: A review. Journal of Advanced Materials, 40(4), 5-26.
Herrmann, H., Mohrdieck, C., and Bjekovic, R. (2002). Materials for the automotive lightweight design. Presented at FKA/IKA Conferences New Advances in Body Engineering, Aachen, Germany, 17.
Jacob, G. C., Fellers, J. F., Simunovic, S., and Starbuck, J. M. (2002). Energy absorption in polymer composites for automotive crashworthiness. Journal of Composite Materials, 36(7), 813-850.
Zhou, W., Craig, J., and Hanagud, S. (1991). Crashworthy behavior of graphite/epoxy composite sine wave webs. In Proceedings of the 32nd Structures, Structural Dynamics, and Materials Conference, AIAA, Baltimore, MD, 1618–1626.
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Earth and Space 2021
Pages: 215 - 228
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© 2021 American Society of Civil Engineers.
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Published online: Apr 15, 2021
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