Structural Engineering and Mechanics

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Numerical formulation of P-I diagrams for blast damage prediction and safety assessment of RC panels

  • Mussa, Mohamed H. (Department of Civil Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia) ;
  • Mutalib, Azrul A. (Department of Civil Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia) ;
  • Hao, Hong (Centre for Infrastructural Monitoring and Protection, School of Civil and Mechanical Engineering, Curtin University)
  • Received : 2018.12.17
  • Accepted : 2020.04.03
  • Published : 2020.09.10
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Abstract

A numerical study is carried out to assess the dynamic response and damage level of one- and two-way reinforced concrete (RC) panels subjected to explosive loads by using finite element LS-DYNA software. The precision of the numerical models is validated with the previous experimental test. The calibrated models are used to conduct a series of parametric studies to evaluate the effects of panel wall dimensions, concrete strength, and steel reinforcement ratio on the blast-resistant capacity of the panel under various magnitudes of blast load. The results are used to develop pressure-impulse (P-I) diagrams corresponding to the damage levels defined according to UFC-3-340-02 manual. Empirical equations are proposed to easily construct the P-I diagrams of RC panels that can be efficiently used to assess its safety level against blast loads.

Keywords

Acknowledgement

The authors would like to thank the Research University Grant (GUP-2018-029) and Fundamental Research Grant Scheme (FRGS/1/2015/TK01/UKM/02/4) for their financial support in order to accomplish the current research.

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