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

Mohamed H. Mussa, Azrul A. Mutalib and Hong Hao

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.

Key Words

P-I curves; RC panels; blast load; numerical formulation; damage assessment

Address

Mohamed H. Mussa, Azrul A. Mutalib: Department of Civil Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia Mohamed H. Mussa: Department of Civil Engineering, University of Warith Al-Anbiyaa, 56001Karbala, Iraq, Hong Hao: Centre for Infrastructural Monitoring and Protection, School of Civil and Mechanical Engineering, Curtin University, Kent Street, WA 6102, Australia

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