Computers and Concrete

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Study on the local damage of SFRC with different fraction under contact blast loading

  • Zhang, Yongliang (CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China) ;
  • Zhao, Kai (CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China) ;
  • Li, Yongchi (CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China) ;
  • Gu, Jincai (CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China) ;
  • Ye, Zhongbao (CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China) ;
  • Ma, Jian (CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China)
  • Received : 2017.06.21
  • Accepted : 2018.04.20
  • Published : 2018.07.25
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Abstract

The steel fiber reinforced concrete (SFRC) shows better performance under dynamic loading than conventional concrete in virtue of its good ductility. In this paper, a series of quasi-static experiments were carried out on the SFRC with volume fractions from 0 to 6%. The compressive strength increases by 38% while the tension strength increases by 106% when the fraction is 6.0%. The contact explosion tests were also performed on the ${\Phi}40{\times}6cm$ circular SFRC slabs of different volume fractions with 20 g RDX charges placed on their surfaces. The volume of spalling pit decreases rapidly with the increase of steel fiber fraction with a decline of 80% when the fraction is 6%, which is same as the crack density. Based on the experimental results, the fitting formulae are given, which can be used to predict individually the change tendencies of the blast crater volume, the spalling pit volume and the crack density in slabs with the increase of the steel fiber fraction. The new formulae of the thickness of damage region are established, whose predictions agree well with our test results and others. This is of great practical significance for experimental investigations and engineering applications.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China

References

  1. Almusallam, T.H., Abadel, A.A., Al-Salloum, Y.A., Siddiqui, N.A. and Abbas, H. (2015), "Effectiveness of hybrid-fibers in improving the impact resistance of RC slabs", Int. J. Impact Eng., 81, 61-73. https://doi.org/10.1016/j.ijimpeng.2015.03.010
  2. Aoude, H., Dagenais, F.P., Burrell, R.P. and Saatcioglu, M. (2015), "Behavior of ultra-high performance fiber reinforced concrete columns under blast loading", Int. J. Impact Eng., 80, 185-202. https://doi.org/10.1016/j.ijimpeng.2015.02.006
  3. Barber R.B. (1973), Steel Rod/Concrete Slab Impact Test (Experimental Simulation), Bechtel Corporation.
  4. Beppu, M., Miwa, K., Itoh, M., Katayama, M. and Ohno, T. (2008), "Damage evaluation of concrete plates by high-velocity impact", Int. J. Impact Eng., 35(12), 1419-1426. https://doi.org/10.1016/j.ijimpeng.2008.07.021
  5. Bischoff, P.H. and Perry, S.H. (1991), "Compressive behaviour of concrete at high strain rates", Mater. Struct., 24(6), 425-450. https://doi.org/10.1007/BF02472016
  6. Drake, J.L., Twisdale, L., Frank, R., Dass, W., Rochefort, M., Walker, R., ... and Sues, R. (1989), Protective Construction Design Manual, ESL-TR-87-57, Air Force Engineering and Services, Tyndall Air Force Base.
  7. Goldsmith, W., Polivka, M. and Yang, T. (1966), "Dynamic behavior of concrete", Exper. Mech., 6(2), 65-79. https://doi.org/10.1007/BF02326224
  8. ISRM and ISRM (1978), "Suggested methods for determining tensile strength of rock materials", Int. J. Rock Mech. Min. Sci. Geomech. Ab., 15(15), 99-103. https://doi.org/10.1016/0148-9062(78)90003-7
  9. Jankov Z.D., Shanahan, J.A. and White, M.P. (1976), "Missile tests of quarter-scale reinforced concrete barriers, A symposium on tornadoes, assessment of knowledge and implications for man", Texas Tech University, Lubbock, TX.
  10. Kaikea, A., Achoura, D., Duplan, F. and Rizzuti, L. (2014), "Effect of mineral admixtures and steel fiber volume contents on the behavior of high performance fiber reinforced concrete", Mater. Des., 63, 493-499. https://doi.org/10.1016/j.matdes.2014.06.066
  11. Kandasamy, S. and Akila, P. (2015), "Experimental analysis and modeling of steel fiber reinforced scc using central composite design", Comput. Concrete, 15(2), 215-229. https://doi.org/10.12989/cac.2015.15.2.215
  12. Lan, S., Lok, T.S. and Heng, L. (2005), "Composite structural panels subjected to explosive loading", Constr. Build. Mater., 19(5), 387-395. https://doi.org/10.1016/j.conbuildmat.2004.07.021
  13. Lee, D.H., Hwang, J.H., Ju, H. and Kang, S.K. (2014), "Application of direct tension force transfer model with modified fixed-angle softened-truss model to finite element analysis of steel fiber-reinforced concrete members subjected to shear", Comput. Concrete, 13(1), 49-70. https://doi.org/10.12989/cac.2014.13.1.049
  14. Magnusson, J. and Student, P.D. (2007), "Fibre reinforced concrete beams subjected to air blast loading", Int. J. Nordic Concrete Res., 35, 18-34.
  15. Mao, L., Barnett, S., Begg, D., Schleyer, G. and Wight, G. (2014), "Numerical simulation of ultra high performance fibre reinforced concrete panel subjected to blast loading", Int. J. Impact Eng., 64(64), 91-100. https://doi.org/10.1016/j.ijimpeng.2013.10.003
  16. Ohtsu, M., Uddin, F.A.K.M., Tong, W. and Murakami, K. (2007), "Dynamics of spall failure in fiber reinforced concrete due to blasting", Constr. Build. Mater., 21(3), 511-518. https://doi.org/10.1016/j.conbuildmat.2006.04.007
  17. Perumal, R. (2014), "Performance and modeling of highperformance steel fiber reinforced concrete under impact loads", Comput. Concrete, 13(2), 255-270. https://doi.org/10.12989/cac.2014.13.2.255
  18. Razaqpur, A.G., Tolba, A. and Contestabile, E. (2007), "Blast loading response of reinforced concrete panels reinforced with externally bonded gfrp laminates", Compos. Part B, 38(5-6), 535-546. https://doi.org/10.1016/j.compositesb.2006.06.016
  19. Reed, M., Lokuge, W. and Karunasena, W. (2014), "Fiberreinforced geopolymer concrete with ambient curing for in situ applications", J. Mater. Sci., 49(12), 4297-4304. https://doi.org/10.1007/s10853-014-8125-3
  20. Shah, A.A. and Ribakov, Y. (2011), "Recent trends in steel fibered high-strength concrete", Mater. Des., 32(8-9), 4122-4151. https://doi.org/10.1016/j.matdes.2011.03.030
  21. Shah, S.P. (1995), Fracture Mechanics of Concrete: Applications of Fracture Mechanics to Concrete, Rock and Other Quasi, Wiley.
  22. Wang, M.Y., Deng, H.J. and Qian, Q.H. (2005), "Study on problems of near cavity of penetration and explosion in rock", Chin. J. Rock Mech. Eng., 11(4), 609-616.
  23. Wang, N.Q. (1998), Calculation Principle and Design of Protective Structure, PLA University of Science and Technology, Nanjing.
  24. Wille, K., Xu, M., El-Tawil, S. and Naaman, A.E. (2016), "Dynamic impact factors of strain hardening uhp-frc under direct tensile loading at low strain rates", Mater. Struct., 49(4), 1351-1365. https://doi.org/10.1617/s11527-015-0581-y
  25. Xu, S. and Reinhardt, H.W. (1999), "Determination of double-k, criterion for crack propagation in quasi-brittle fracture, part ii: analytical evaluating and practical measuring methods for threepoint bending notched beams", Int. J. Fract., 98(2), 151-177. https://doi.org/10.1023/A:1018740728458
  26. Yusof, M.A., Norazman, N., Ariffin, A., Zain, F.M., Risby, R. and Ng, C.P. (2011), "Normal strength steel fiber reinforced concrete subjected to explosive loading", Int. J. Sustain. Constr. Eng. Technol., 1(2), 127-136.
  27. Zhang, X.X., Ruiz, G. and Elazim, A.M.A. (2014), "Loading rate effect on crack velocities in steel fiber-reinforced concrete", Int. J. Impact Eng., 76, 60-66.
  28. Zhang, X.X., Yu, R.C., Ruiz, G., Tarifa, M. and Camara, M.A. (2010), "Effect of loading rate on crack velocities in hsc", Int. J. Impact Eng., 37(4), 359-370. https://doi.org/10.1016/j.ijimpeng.2009.10.002

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