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Polymers 2014, 6(4), 1026-1039; doi:10.3390/polym6041026
Article

Strain Rate Effects in CFRP Used For Blast Mitigation

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Received: 12 February 2014; in revised form: 17 March 2014 / Accepted: 25 March 2014 / Published: 3 April 2014
(This article belongs to the Special Issue Fiber-Reinforced Polymer Composites in Structural Engineering)
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Abstract: The purpose of this research is to gain a better understanding of strain rate effects in carbon fiber reinforced polymer (CFRP) laminates exposed to blast loading. The use of CFRP offers an attractive option for mitigating structures exposed to blasts. However, the effect of high strain rates in CFRP composites commonly used in the civil industry is unknown. This research conducted tensile tests of 21 CFRP coupons using a hydraulically powered dynamic loader. The strain rates ranged from 0.0015 s−1 to 7.86 s−1 and are representative of strain rates that CFRP may see in a blast when used to strengthen reinforced concrete structures. The results of the testing showed no increase in the tensile strength or stiffness of the CFRP at the higher strain rates. In addition, the results showed significant scatter in the tensile strengths possibly due to the rate of loading or manufacture of the coupon.
Keywords: carbon fiber reinforced polymers; blast loads; reinforced concrete; strain rate; tensile strength carbon fiber reinforced polymers; blast loads; reinforced concrete; strain rate; tensile strength
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Orton, S.L.; Chiarito, V.P.; Rabalais, C.; Wombacher, M.; Rowell, S.P. Strain Rate Effects in CFRP Used For Blast Mitigation. Polymers 2014, 6, 1026-1039.

AMA Style

Orton SL, Chiarito VP, Rabalais C, Wombacher M, Rowell SP. Strain Rate Effects in CFRP Used For Blast Mitigation. Polymers. 2014; 6(4):1026-1039.

Chicago/Turabian Style

Orton, Sarah. L.; Chiarito, Vincent P.; Rabalais, Christopher; Wombacher, Matthew; Rowell, Stephen P. 2014. "Strain Rate Effects in CFRP Used For Blast Mitigation." Polymers 6, no. 4: 1026-1039.


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