Modelling the behaviour of polymer coated reinforced concrete panels subjected to blast loads

Sudharshan Naidu Raman, T. Pham, T. Ngo, P. Mendis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper presents the findings of numerical modelling on the behaviour of reinforced concrete (RC) panels retrofitted with polymer coatings when subjected to blast loads. The analysis was undertaken via the finite element (FE) code LS-DYNA, using the Lagrangian FE approach with explicit time integration. The FE modelling was undertaken to simulate an experimental blast trial that will be undertaken by the authors in Vietnam. The dimensions of all the panels modelled were 1700 × 1000 × 60 mm. Several polyurea coated panels with varying thicknesses and locations of polyurea coatings were modelled and analysed with LS-DYNA. The behaviour of these retrofitted panels under blast loads from the detonation of 2 kg Ammonite explosive at 1.6 m stand-off, were compared with the behaviour of a control (unretrofitted) bare RC panel. The results obtained were evaluated in terms of panel deformation, displacement-time history and panel damage profile. The findings of the FE analysis indicate that under blast loading conditions, the RC panels coated with polyurea performed much better than the bare RC panel. The resistance of the panels to blast was only marginally improved when the thickness of the polyurea coatings was increased. It was also evident that applying the polyurea coating on the tension face of the panel was more pronounced in terms of panel displacement and deformation control.

Original languageEnglish
Title of host publicationProceedings of the 8th International Conference on Shock and Impact Loads on Structures
Pages497-504
Number of pages8
Publication statusPublished - 2009
Event8th International Conference on Shock and Impact Loads on Structures - Adelaide, SA
Duration: 2 Dec 20094 Dec 2009

Other

Other8th International Conference on Shock and Impact Loads on Structures
CityAdelaide, SA
Period2/12/094/12/09

Fingerprint

Reinforced concrete
Coatings
Polymers
Detonation
Finite element method

Keywords

  • Blast loads
  • Finite element (FE)
  • Polymer
  • Reinforced concrete (RC)
  • Retrofitting

ASJC Scopus subject areas

  • Civil and Structural Engineering

Cite this

Raman, S. N., Pham, T., Ngo, T., & Mendis, P. (2009). Modelling the behaviour of polymer coated reinforced concrete panels subjected to blast loads. In Proceedings of the 8th International Conference on Shock and Impact Loads on Structures (pp. 497-504)

Modelling the behaviour of polymer coated reinforced concrete panels subjected to blast loads. / Raman, Sudharshan Naidu; Pham, T.; Ngo, T.; Mendis, P.

Proceedings of the 8th International Conference on Shock and Impact Loads on Structures. 2009. p. 497-504.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Raman, SN, Pham, T, Ngo, T & Mendis, P 2009, Modelling the behaviour of polymer coated reinforced concrete panels subjected to blast loads. in Proceedings of the 8th International Conference on Shock and Impact Loads on Structures. pp. 497-504, 8th International Conference on Shock and Impact Loads on Structures, Adelaide, SA, 2/12/09.
Raman SN, Pham T, Ngo T, Mendis P. Modelling the behaviour of polymer coated reinforced concrete panels subjected to blast loads. In Proceedings of the 8th International Conference on Shock and Impact Loads on Structures. 2009. p. 497-504
Raman, Sudharshan Naidu ; Pham, T. ; Ngo, T. ; Mendis, P. / Modelling the behaviour of polymer coated reinforced concrete panels subjected to blast loads. Proceedings of the 8th International Conference on Shock and Impact Loads on Structures. 2009. pp. 497-504
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