Dynamic Response of RC Panel with and Without Openings Subjected to Blast Loading
Palak J Shukla1, Atul K Desai2, Chetankumar D Modhera3
1Palak J Shukla, Department of Applied Mechanics, Shri K J Polytechnic, Bharuch, India.
2Atul K Desai, Department of Applied Mechanics, Sardar Vallabhbhai National Institute of Technology, Surat, India.
3Chetankumar D Modhera, Department of Applied Mechanics, Sardar Vallabhbhai National Institute of Technology, Surat, India.
Manuscript received on 03 July 2019 | Revised Manuscript received on 09 July 2019 | Manuscript published on 30 August 2019 | PP: 2535-2549 | Volume-8 Issue-10, August 2019 | Retrieval Number: J12520881019/19©BEIESP | DOI: 10.35940/ijitee.J1252.0881019
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The dynamic response of reinforced concrete (RC) panels without and with different configuration of opening under blast load scenario is investigated in the present study. The numerical simulations were carried out using finite element method with ABAQUS application. The concrete behavior under blast loading was modelled using Concrete damaged plasticity model. The material parameters for concrete damaged plasticity model were determined using methodology proposed by [14]. The parametric study was carried out using variation in blast load due to different charge weight. It was observed that the peak displacement increases with increase in blast load. It was also observed that at lower blast load, failure of reinforced concrete panel was initiated by cracking at rear face of panel but as the blast load increases the RC panel was failed by combination of crushing of front face of panel along with cracking of rear face. It was observed that for the given blast load, the RC panel without opening is less affected by crushing failure as compared to RC panel with opening configuration studied. It was also observed that the RC panel with circular opening at center is stiffer than other opening configuration and observed to have stable structural performance against the blast load studied.
Keywords: Blast Phenomenon, Numerical Simulation, Concrete Damaged Plasticity Model, Damage Variables
Scope of the Article: Numerical Modelling of Structures