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Experimental Study on Dynamic Properties of UHMWPE and PVA Fibers Concrete

  • Structural Engineering
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Abstract

The purpose of this paper is to examine the dynamic three-point bending performance of UHMWPE and PVA fiber concrete specimens by means of density variation (0, 0.6, 1.2, 1.8, 2.4 kg/m3). Additionally, the difference in performance between UHMWPE and PVA fiber concretes, as well as the impact characteristics and the damage evolution law exhibited by these fiber concretes under repeated dynamic loading were studied and discussed. A Split Hopkinson pressure bar (SHPB) apparatus was used to determine the concrete behavior at different strain rates; the accuracy of which was achieved by conducting a structural transient dynamic response analysis. The dynamic failure strength and strain rate of the specimen were derived to investigate the rate effect with different quantities of UHMWPE and PVA fiber concretes. The experimental results were then compared with those predicted from available equations, verifying the validity of the results obtained. A theoretical model for analyzing the transient elastic response of the specimen was then proposed. This paper concludes by proposing an analytical equation for predicting the dynamic compression and tensile properties of these new-type fibers.

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Acknowledgements

This study is financially supported by National Natural Science Fund of China (No. 51879094), and the Fundamental Research Funds for the Central Universities (2018B00214).

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Correspondence to Bashir H. Osman.

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Osman, B.H., Tian, Z., Jiang, G. et al. Experimental Study on Dynamic Properties of UHMWPE and PVA Fibers Concrete. KSCE J Civ Eng 24, 2993–3011 (2020). https://doi.org/10.1007/s12205-020-2132-5

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  • DOI: https://doi.org/10.1007/s12205-020-2132-5

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