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    Impact resistance of deflection-hardening fiber reinforced concretes with different mixture parameters

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    Ashour_Structural_Concrete.pdf (1.152Mb)
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    Publication date
    2019-06
    Author
    Banyhussan, Q.S.
    Yildirim, G.
    Anil, O.
    Erdem, R.T.
    Ashour, Ashraf F.
    Sahmaran, M.
    Keyword
    High performance fiber reinforced concrete (HPFRC)
    Deflection-hardening
    Impact
    Coarse aggregate
    Fly ash
    Abaqus
    Rights
    © 2019 fib. International Federation for Structural Concrete. This is the peer reviewed version of the following article: Banyhussan QS, Yildirim G, Anil O et al (2019) Impact resistance of deflection-hardening fiber reinforced concretes with different mixture parameters. Structural Concrete. 20(3): 1036-1050, which has been published in final form at https://doi.org/10.1002/suco.201800233. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
    Peer-Reviewed
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    Abstract
    The impact behavior of deflection-hardening High Performance Fiber Reinforced Cementitious Concretes (HPFRCs) was evaluated herein. During the preparation of HPFRCs, fiber type and amount, fly ash to Portland cement ratio and aggregate to binder ratio were taken into consideration. HPFRC beams were tested for impact resistance using free-fall drop-weight test. Acceleration, displacement and impact load vs. time graphs were constructed and their relationship to the proposed mixture parameters were evaluated. The paper also aims to present and verify a nonlinear finite element analysis, employing the incremental nonlinear dynamic analysis, concrete damage plasticity model and contact surface between the dropped hammer and test specimen available in ABAQUS. The proposed modelling provides extensive and accurate data on structural behavior, including acceleration, displacement profiles and residual displacement results. Experimental results which are further confirmed by numerical studies show that impact resistance of HPFRC mixtures can be significantly improved by a proper mixture proportioning. In the presence of high amounts of coarse aggregates, fly ash and increased volume of hybrid fibers, impact resistance of fiberless reference specimens can be modified in a way to exhibit relatively smaller displacement results after impact loading without risking the basic mechanical properties and deflection-hardening response with multiple cracking.
    URI
    http://hdl.handle.net/10454/16767
    Version
    Accepted Manuscript
    Citation
    Banyhussan QS, Yildirim G, Anil O et al (2019) Impact resistance of deflection-hardening fiber reinforced concretes with different mixture parameters. Structural Concrete. 20(3): 1036-1050.
    Link to publisher’s version
    https://doi.org/10.1002/suco.201800233
    Type
    Article
    Collections
    Engineering and Informatics Publications

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