MATEC Web of Conferences (Jan 2021)

Numerical Simulation of Blast Loaded CFRP Retrofitted Steel Plates

  • Shuaib Mujtaba M.,
  • Chung Kim Yuen Steeve,
  • Nurick Gerald N.

DOI
https://doi.org/10.1051/matecconf/202134700038
Journal volume & issue
Vol. 347
p. 00038

Abstract

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This paper reports on the results of a numerical study to simulate the response of carbon fibre reinforced polymer (CFRP) retrofitted steel plates to applied blast loads using finite element software, LS-DYNA. The results of the simulation were validated against plate response and magnitude of deformation obtained from previous experiments. The uniform blast load was generated in the experiment by detonating a cylindrical charge down the end of a square tube. The finite element code LS-DYNA was used to simulate the structural response of the respective blast structures. For the numerical model, the blast load was simulated using the mapping feature available in LS-DYNA for the multi-material arbitrary Lagrangian-Eulerian (MM-ALE) elements which significantly reduced the size of the air domain in the model. The simulations showed a satisfactory correlation with the experiments for the blast results and post-failure deformations that occurred in CFRP retrofitted steel plates.