Investigating and comparing the concrete constitutive models in the numerical simulation of reinforced concrete slabs under explosion load

Document Type : Research Paper

Authors

1 Assistant Professor, Department of Civil Engineering, Faculty of Engineering, Ayatollah Boroujerdi University, Boroujerd, Iran.

2 Associate Professor, Department of Civil Engineering, Faculty of Engineering, Lorestan University, Lorestan, Iran.

3 M.Sc of Civil Engineering - Structural Engineering, Afarinesh Institute of Higher Education, Boroujerd, Iran

10.22124/jcr.2026.21752.1562

Abstract

The simulation of the behavior of reinforced concrete (RC) slabs using numerical software is a cost-effective method for their analysis and design. In the present study, by focusing on an ordinary RC slab element subjected to blast loading and conducting multiple simulations, a comparison of the models was performed. The software LS-DYNA, version R 4.2, and the capable, widely used, and available concrete material models: Concrete Damage R3, HJC, CSCM, and Winfrith, were used for the simulation. Based on existing tests and the information provided within them, the blast load was applied to the slab using the pressure-time history method, and the results for the maximum slab deflection obtained from the simulation using the mentioned material models were compared. The Concrete Damage R3 model provided more accurate results than the other models. In this research, the accuracy of the models was evaluated quantitatively based on the Percent Relative Error (PRE) between the simulation results and the actual laboratory data. The HJC model required the least computation time but its accuracy was second to the Concrete Damage R3 model; however, it was necessary for the user to introduce all parameters, including the equation of state, to the model. The CSCM model had lower accuracy than the HJC model but required the fewest input parameters for introduction to the software; paradoxically, this model required the longest computation time. The Winfrith model had the lowest accuracy.

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References

[1] Wai-Fah, Chen. 2007 Plasticity in reinforced concrete. McGraw-Hill. New york.
[2] Youcai Wu et al. 2012 Performance of LS-DYNA Concrete Constitutive Models. 12th International LS-DYNA Users Conference.
[3] Rebecca M. Brannon et al. 2009 Survey of Four Damage Models for Concrete. Sandia National Laboratories.
[4] Anirudha Kadambi Vasudevan. 2012 Finite  element analysis  and experimental  comparison  of doubly  reinforced  concretr  slabs  subjected  to  blast loads. Doctoral Thesis. Missouri-Kansas City University.
[5] M. Polanco-Loria et al. 2008 Numerical predictions of ballistic limits for concrete slabs using a modified version of the HJC concrete model. International Journal of Impact Engineering, 35(5), 290–303.
[6] S. Yao et al. 2016 Experimental and numerical study on the dynamic response of RC slabs under blast loading. Engineering Failure Analysis, 35, 120–129.
[7] Wu, Jun et al. 2020 Numerical simulation of reinforced concrete slab subjected to blast loading and the structural damage assessment. Engineering Failure Analysis, 118: 104926.
[8] Augusto, A. S.et al. 2021 Finite Element Analysis of Experimentally Tested Concrete Slabs Subjected to Airblast. Defence Science Journal, 71(5), 630-638.
[9] Abbas, Asim.et al. 2024 Numerical study on the behavior of reinforced concrete sandwich panels (RCSPs) under blast load. Iranian Journal of Science and Technology, Transactions of Civil Engineering, 48(5), 3049-3068.
[10] Kumar, V. et al. 2025 Experimental and numerical investigation of reinforced concrete slabs under blast loading. Engineering Structures, 206, 110125.
[11] FEMA426. 2003 Reference Manual to Mitigate Potential Terrorist Attacks against Building. Federal Emergency Management Agency. Chapter 4, 1-20.
[12] FEMA427. 2003 Primer for Design of Commercial Buildings to Mitigate Terrorist Attacks. Federal Emergency Management Agency. Chapter 4, 1-10.
[13] Bangash, N. Y. H.; Bangash, T. 2009 Shock, Impact and Explosion. Springer-Verlag, Berlin Heidelberg. 388-393. 
[14] Unified Facilities Criteria (UFC 3-340-02). 2008 Structures to Resist the Effects of Accidental Explosions. US Department of Defense. Washington DC.
[15] C. Wu et al. 2009 Blast testing of ultra-high performance fibre and FRP-retrofitted concrete slabs. International Journal of Engineering Structures. 31(9), 2060-2069.
[16] Blake Marshall Bush. 2010 Analytical Evaluation of Concrete Penetration Modeling Techniques. Doctoral Thesis. faculity of North Carolina State University.
 

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