DOI QR코드

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Numerical and theoretical modelling of low velocity impact on UHPC panels

  • Prem, Prabhat R. (CSIR-Structural Engineering Research Centre) ;
  • Verma, Mohit (CSIR-Structural Engineering Research Centre) ;
  • Ramachandra Murthy, A. (CSIR-Structural Engineering Research Centre) ;
  • Rajasankar, J. (CSIR-Structural Engineering Research Centre) ;
  • Bharatkumar, B.H. (CSIR-Structural Engineering Research Centre)
  • 투고 : 2016.08.05
  • 심사 : 2017.03.10
  • 발행 : 2017.07.25

초록

The paper presents the studies carried out on low velocity impact of Ultra high performance concrete (UHPC) panels of size $350{\times}350{\times}10mm^3$ and $350{\times}350{\times}15mm^3$. The panels are cast with 2 and 2.5% micro steel fibre and compared with UHPC without fiber. The panels are subjected to low velocity impact, by a drop-weight hemispherical impactor, at three different energy levels of 10, 15 and 20 J. The impact force obtained from the experiments are compared with numerically obtained results using finite element method, theoretically by energy balance approach and empirically by nonlinear multi-genetic programming. The predictions by these models are found to be in good coherence with the experimental results.

키워드

참고문헌

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