Effects of EPS on peak pressure reading reflected in field test with military explosive
DOI:
https://doi.org/10.55972/spectrum.v24i1.399Keywords:
Reflected pressure, PBX, Expanded polystyreneAbstract
Results achieved in experimental tests, using four reinforced concrete slabs supported as targets of military plastic explosive PBX (plastic-bonded explosive), are presented in this work. The ability of EPS (expanded polystyrene) foam coating to attenuate the peak value of reflected pressure recorded in piezoelectric sensors was verified. Statistical analyzes were performed on the reflected pressure reading results to verify the attenuation generated by the foam. The results showed a 38% reduction in the experimental reflected peak pressure compared to the expected theoretical reflected pressure, in the slab that received a 5 cm layer of EPS coating.
References
J. Akhavan, The Chemistry of Explosives, 2nd ed. Cambridge: RS.C, 2004.
P. D. Smith and J. G. Hetherington, Blast and Ballistic Loading of Structures, 1st ed. Burlington: Butterworth-Heinemann, 1994.
T. Ngo, P. Mendis, A. Gupta, and J. Ramsay, “Blast loading and blast effects on structures - An overview,” Electron. J. Struct. Eng., vol. 7, pp. 76–91, 2007.
J. Keller, M. Gresho, A. Harris, and A. Tchouvelev, “What is an explosion?,” Int. J. Hydrogen Energy, vol. 39, no. 5, pp. 1–8, 2014.
J. J. Sabatini, L. A. Wingard, P. E. Guzman, E. C. Johnson, and G. W. Drake, “Bis-Isoxazole dinitrate: A potential propellant and explosive ingredient,” in Proceedings of the 42nd International Pyrotechnics Society Seminar, 2016, pp. 98–101.
E. Kirchhof, “Estimativa de Vida Útil de Explosivo PBX no Envelhecimento Acelerado,” Instituto Tecnológico de Aeronáutica, São José dos Campos, 2014.
N. Kubota, Propellants and Explosives - Thermochemical Aspects of Combustion, 2nd ed. Weinheim: WILEY-VCH, 2007.
W. C. L. Silva, “Blast – efeitos da onda de choque no ser humano e nas estruturas,” Instituto Tecnológico de Aeronáutica, São José dos Campos, 2007.
N. Anandavalli, N. Lakshmanan, N. Iyer, A. Prakash, K. Ramanjaneyulu, J. Rajasankar, and C. Rajagopal, “Behaviour of a Blast Loaded Laced Reinforced Concrete Structure,” Def. Sci. J., vol. 62, no. 5, pp. 284–289, 2012.
V. Dharma Rao, A. Srinivas Kumar, K. Venkateswara Rao, and V. S. R. Krishna Prasad, “Theoretical and Experimental Studies on Blast Wave Propagation in Air,” Propellants, Explos. Pyrotech., vol. 1, no. 40, pp. 138–143, 2015.
F. B. Mendonça, “Avaliação da capacidade do explosivo plástico PBX gerar danos a uma laje de concreto armado biapoiada por efeito de onda de choque,” Instituto Tecnológico de Aeronáutica, São José dos Campos, 2017.
F. B. Mendonca, G. Urgessa, K. Iha, R. J. Rocha, and J. A. F. F. Rocco, “Comparison of Predicted and Experimental Behaviour of RC Slabs Subjected to Blast using SDOF Analysis,” Def. Sci. J., vol. 68, no. 2, pp. 138–143, 2018.
C. B. Amorim, “Estudo experimental da dinâmica e dos parâmetros de efeito de sopro da onda de mach,” Instituto Tecnológico de Aeronáutica, São José dos Campos, 2016.
UNODA, “International Ammunition Technical Guideline (United Nations SaferGuard),” New York, 2011.
M. J. Lowak, B. L. Bingham, T. J. Mander, and J. R. Montoya, “Blast testing of pre-cast concrete load-bearing wall panels,” in Geotechnical and Structural Engineering Congress 2016, 2016, pp. 1404–1413.
B. Moore, T. Jaglinski, D. S. Stone, and R. S. Lakes, “On the bulk modulus of open cell foams,” Cell. Polym., vol. 26, no. 1, pp. 1–10, 2007.
C. Shim, D. Shin, and N. Yun, “Pressure-impulse diagram of Multi-layered aluminium foam panels,” J. Eng. Sci. Technol., vol. 8, no. 3, pp. 284–295, 2013.
C. Wu, L. Huang, and D. J. Oehlers, “Blast Testing of Aluminum Foam – Protected Reinforced Concrete Slabs,” J. Perform. Constr. Facil., vol. 25, no. October, pp. 464–474, 2011.
Y. Hua, P. K. Akula, and L. Gu, “Experimental and numerical investigation of carbon fiber sandwich panels subjected to blast loading,” Compos. Part B Eng., vol. 56, pp. 456–463, 2014.
B. Langhorst, C. Cook, J. Schondel, and H. S. Chu, “Material Systems for Blast-Energy Dissipation,” Idaho Falls, 2010.
R. Hajek, M. Foglar, and J. Fladr, “Influence of barrier material and barrier shape on blast wave mitigation,” vol. 120, pp. 54–64, 2016.
M. D. Goel, V. A. Matsagar, A. K. Gupta, and S. Marburg, “An abridged review of blast wave parameters,” Def. Sci. J., vol. 62, no. 5, pp. 300–306, 2012.
C. N. Kingery and G. Bulmash, “Airblast Parameters From TNT Spherical Air Bursts and Hemispherical Surface Bursts,” Maryland, 1984.
F. Mendonça, G. Urgessa, and J. Rocco, “Experimental investigation of 50 MPa reinforced concrete slabs subjected to blast loading,” Ing. e Investig., vol. 2018, no. 2, pp. 27–33, 2018.
D. Bogosian, S. Rigby, and D. Powell, “A comprehensive comparison of methods for clearing effects on reflected airblast impulse,” Mil. Asp. Blast Shock 24, no. 3, 2016.
Downloads
Published
How to Cite
Issue
Section
Categories
License
Copyright (c) 2023 Fausto, Girum, Marcela, Iha, Fritz
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
