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Impact of a shock wave on a structure strengthened by rigid polyurethane foam

  • Mazek, Sherif A. (Civil Engineering Department, Military Technical College, Kobbry El-Kobba, Khlifa El-Maamoon) ;
  • Mostafa, Ashraf A. (Egyptian Engineering Department)
  • Received : 2013.09.04
  • Accepted : 2013.10.29
  • Published : 2013.11.25

Abstract

The use of the rigid polyurethane foam (RPF) to strengthen sandwich structures against blast terror has great interests from engineering experts in structural retrofitting. The aim of this study is to use the RPF to strengthen sandwich steel structure under blast load. The sandwich steel structure is assembled to study the RPF as structural retrofitting. The filed blast test is conducted. The finite element analysis (FEA) is also used to model the sandwich steel structure under shock wave. The sandwich steel structure performance is studied based on detonating different TNT explosive charges. There is a good agreement between the results obtained by both the field blast test and the numerical model. The RPF improves the sandwich steel structure performance under the blast wave propagation.

Keywords

References

  1. Aimone, C.T. (1982), "Three-dimensional wave propagation model of full-scale rock fragmentation, Ph.D. Thesis, Northwestern University.
  2. AUTODYN (2005), "Theory Manuals", Version 6.1, Century Dynamics Inc., Sam Ramon, USA.
  3. Baker, W.E., Cox, P.A., Kulesz, J.J. and Strehlow, R.A. (1983), Explosion Hazards and Evaluation, Elsevier.
  4. Beshara, F.B.A. (1994), "Modeling of blast loading on aboveground structures -I. Internal blast and ground shock", Comp. Struct., 51(3), 585-596. https://doi.org/10.1016/0045-7949(94)90066-3
  5. Chen, H. and Chen, S. (1996), "Dynamic responses of shallow-buried flexible plates subjected to impact loading", Journal of Structure Engineering, 122(1), 55-60. https://doi.org/10.1061/(ASCE)0733-9445(1996)122:1(55)
  6. Dharmasena, K.P., Wadley, H.N., Xue, Z. and Hutchinson, J.W. (2008), "Mechanical response of metallic honeycomb sandwich panel structures to high-intensity dynamic loading", International Journal of Impact Engineering, 35(9), 1063-1074.
  7. Fayad, H.M. (2009), "The optimum design of the tunnels armoured doors under blast effects", Ph.D. Thesis, Military Technical College (MTC), Cairo.
  8. Gaissmaiere, A.E.W. (2003), "Aspects of thermobaric weapon", ADF Health, 4, 3-6.
  9. Gustafsson, R. (1973), Swedish Blasting Technique, Gothenburg, Sweden, SPI.
  10. Ha, J., Yi, N., Choi, J. and Kim, J. (2011), "Experimental study on hybrid CFRP-PU strengthening effect on RC panels under blast loading", Journal of Composite Structures, 93, 2070-2082. https://doi.org/10.1016/j.compstruct.2011.02.014
  11. Hao, H., Ma, G.W. and Zhou, Y.X. (1998), "Numerical simulation of underground explosions", Fragblast Int. J. Blasting and Fragmentation, 2, 383-395.
  12. Liu, L. and Katsabanis, P.D. (1997), "Development of a continuum damage model for blasting analysis", Int. J. Rock Mech. Min. Sci., 34, 217-231. https://doi.org/10.1016/S0148-9062(96)00041-1
  13. Lu, Y., Wang, Z. and Chong, K. (2005), "A comparative study of buried structure in soil subjected to blast load using 2-D and 3-D numerical simulations", Journal Soil Dynamics and Earthquake Engineering, 25, 275-288. https://doi.org/10.1016/j.soildyn.2005.02.007
  14. Luccioni, B., Ambrosini, D., Nurick, G. and Snyman, I. (2009), "Craters produced by underground explosions", Journal of Computers and Structures, 87, 1366- 1373. https://doi.org/10.1016/j.compstruc.2009.06.002
  15. Mohamad, L.S. (2006), "Study and design of fortified structures due to blast effects", M.Sc Thesis, Military Technical College (MTC), Cairo, Ammunition and Explosives, AC/258-D/258, Brussels, Belgium.
  16. Remennikov, A. (2003), "A review of methods for predicting bomb blast effects on buildings", Journal of Battlefield Technology, 6(3), 155- 161.
  17. Schueller, C.T. (1991), Structural Dynamics, Springer-Verlag, Berlin, New York.
  18. Smith, P.D. and Hetherington, J.G. (1994), Blast and Ballistic Loading of Structures, Butterworth-Heinemann Ltd., UK.
  19. Technical Manual TM 5-885-1 (1986), Fundamentals of Protective Design for Conventional Weapons, Headquarters Department of the Army, Washington DC.
  20. Technical Manual TM 5-1300 (2008), Structures to Resist the Effects of Accidental Explotions, Unified Facilities Criteria (UFC), U.S. Army Corps of Engineers, Naval Facilities Engineering Command, Air Force Civil Engineer Support Agency.
  21. Trelat, S., Sochet, I., Autrusson, B., Cheval, K. and Loiseau, O. (2007), Impact of a shock wave on a structure on explosion at altitude, Journal of Loss Prevention on the Process Industries, 20, 509-516. https://doi.org/10.1016/j.jlp.2007.05.004
  22. Wu, C., Hao, H. and Zhou, Y.X. (1999), "Dynamic response analysis of rock mass with stochastic properties subjected to explosive loads", Fragblast the International J. Blasting and Fragmentation, 3, 137-153.
  23. Zhang, W. and Valliappan, S. (1990), "Analysis of random anisotropic damage mechanics problems of rock mass, Part II: statistical estimation", Rock Mechanics and Rock Engineering, 23, 241-259. https://doi.org/10.1007/BF01043306

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