Improving the Impact Resistance and Antisplash of Civil Air Defense Wall: Experiments and Finite-Element Simulation
Publication: Journal of Structural Engineering
Volume 149, Issue 2
Abstract
In order to avoid the occurrence of serious casualties and secondary injuries caused by high-speed splashing concrete fragments, pendulum impact test research and numerical analysis were carried out for the first time on the civil air defense wall sprayed with 2-mm polyisocyanate-oxazodone (POZD) coatings at different positions. The results showed that spraying a 2-mm POZD coating on the civil air defense wall can significantly reduce the damage area of the wall, restrain the splashing of concrete fragments, ensure the integrity of the wall, and improve the impact resistance and airtightness of the civil air defense wall. The large-rupture-strain fiber-reinforced polymer (FRP) pasted on the back significantly improved the bending stiffness and deformation capacity and reduced the residual displacement of the wall. The failure modes and failure characteristics of the wall obtained through the experiments in this paper provide the failure evaluation criteria for existing civil air defense walls.
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Data Availability Statement
Some or all of the data, models, or codes that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The authors are grateful for the financial support from the Shandong Joint Fund (U2106222), the National Natural Science Foundation of China (52108282), and the Shandong Natural Science Fund (ZR2021QE053).
References
Al-Zubaidy, H., X.-L. Zhao, and R. Al-Mahaidi. 2013. “Mechanical characterisation of the dynamic tensile properties of CFRP sheet and adhesive at medium strain rates.” Compos. Struct. 96 (Feb): 153–164. https://doi.org/10.1016/j.compstruct.2012.09.032.
Amini, M. R., J. B. Isaacs, and S. Nemat-Nasser. 2010a. “Experimental investigation of response of monolithic and bilayer plates to impulsive loads.” Int. J. Impact Eng. 37 (1): 82–89. https://doi.org/10.1016/j.ijimpeng.2009.04.002.
Amini, M. R., J. Simon, and S. Nemat-Nasser. 2010b. “Numerical modeling of effect of polyurea on response of steel plates to impulsive loads in direct pressure-pulse experiments.” Mech. Mater. 42 (6): 615–627. https://doi.org/10.1016/j.mechmat.2009.09.009.
Chang, K. K., Y. Xi, and Y. S. Roh. 2006. “A fractal fracture model and application to concrete with different aggregate sizes and loading rates.” Struct. Eng. Mech. 23 (2): 147–161. https://doi.org/10.12989/sem.2006.23.2.147.
Chen, Y.-S., B. Wang, B. Zhang, Q. Zheng, J.-N. Zhou, F.-N. Jin, and H.-L. Fan. 2020. “Polyurea coating for foamed concrete panel: An efficient way to resist explosion.” Defence Technol. 16 (1): 136–149. https://doi.org/10.1016/j.dt.2019.06.010.
Clark, G. A., and I. A. Burch. 2001. Emergent technologies for the Royal Australian Navy’s future afloat support force. Launceston, TAS, Australia: Aeronautical and Maritime Research Laboratory.
Cowper, G. R., and P. S. Symonds. 1957. Strain-hardening and strain-rate effects in the impact loading of cantilever beams. Providence, RI: Brown Univ.
CS (Chinese Standards). 2005. Fiber-reinforced plastics composites—Determination of tensile properties(S). GB/T 1447-2005. Beijing: Architecture Publishing & Media.
Dai, J.-G., L. Lam, and T. Ueda. 2012. “Seismic retrofit of square RC columns with polyethylene terephthalate (PET) fibre reinforced polymer composites.” Constr. Build. Mater. 27 (1): 206–217. https://doi.org/10.1016/j.conbuildmat.2011.07.058.
Haris, A., H. P. Lee, and V. B. C. Tan. 2018. “An experimental study on shock wave mitigation capability of polyurea and shear thickening fluid based suspension pads.” Defence Technol. 14 (1): 12–18. https://doi.org/10.1016/j.dt.2017.08.004.
Hawileh, R. A., H. H. Mhanna, A. Al Rashed, J. A. Abdalla, and M. Z. Naser. 2022. “Flexural behavior of RC beams externally bonded with polyethylene terephthalate (PET) fiber reinforced polymer (FRP) laminates.” Eng. Struct. 256 (Apr): 114036. https://doi.org/10.1016/j.engstruct.2022.114036.
Hrynyk, T. D., and J. J. Myers. 2008. “Out-of-plane behavior of URM arching walls with modern blast retrofits: Experimental results and analytical model.” J. Struct. Eng. 134 (10): 1589–1597. https://doi.org/10.1061/(ASCE)0733-9445(2008)134:10(1589).
Huynh, L., S. Foster, H. Valipour, and R. Randall. 2015. “High strength and reactive powder concrete columns subjected to impact: Experimental investigation.” Constr. Build. Mater. 78 (Mar): 153–171. https://doi.org/10.1016/j.conbuildmat.2015.01.026.
Iqbal, N., P. K. Sharma, D. Kumar, and P. K. Roy. 2018. “Protective polyurea coatings for enhanced blast survivability of concrete.” Constr. Build. Mater. 175 (Jun): 682–690. https://doi.org/10.1016/j.conbuildmat.2018.04.204.
Jiang, Y. X. 2020. Research on the resistance of polyurea coated large-scale steel storage tanks subjected to blast and impact loadings, 24–26. Harbin, China: Harbin Institute of Technology.
Kishi, N., O. Nakano, K. G. Matsuoka, and T. Ando. 2001. “Experimental study on ultimate strength of flexural-failure-type RC beams under impact loading.” In Proc., Transactions of the 16th Int. Conf. on Structural Mechanics in Reactor Technology (SMIRT), 1–7. Raleigh, NC: International Association for Structural Mechanics in Reactor Technology.
Knox, K. J., M. I. Hammons, T. T. Lewis, and J. R. Porter. 2000. Polymer materials for structural retrofit. Austin, TX: Air Force Research Laboratory.
LeBlanc, J., N. Gardner, and A. Shukla. 2013. “Effect of polyurea coatings on the response of curved E-Glass/Vinyl ester composite panels to underwater explosive loading.” Composites, Part B 44 (1): 565–574. https://doi.org/10.1016/j.compositesb.2012.02.038.
Li, J., and H. Hao. 2014. “Numerical study of concrete spall damage to blast loads.” Int. J. Impact Eng. 68 (Jun): 41–55. https://doi.org/10.1016/j.ijimpeng.2014.02.001.
Li, Y., Z. Chen, T. Zhao, X. Cao, Y. Jiang, D. Xiao, and D. Fang. 2019. “An experimental study on dynamic response of polyurea coated metal plates under intense underwater impulsive loading.” Int. J. Impact Eng. 133 (Nov): 103361. https://doi.org/10.1016/j.ijimpeng.2019.103361.
Liu, B., W. Fan, W. Guo, B. Chen, and R. Liu. 2017. “Experimental investigation and improved FE modeling of axially-loaded circular RC columns under lateral impact loading.” Eng. Struct. 152 (Dec): 619–642. https://doi.org/10.1016/j.engstruct.2017.09.009.
Liu, Q., P. Chen, Y. Zhang, and Z. Li. 2020a. “Compressive behavior and constitutive model of polyurea at high strain rates and high temperatures.” Mater. Today Commun. 22 (Mar): 100834. https://doi.org/10.1016/j.mtcomm.2019.100834.
Liu, Q.-Q., S.-P. Wang, X. Lin, P. Cui, and S. Zhang. 2020b. “Numerical simulation on the anti-penetration performance of polyurea-core Weldox 460 E steel sandwich plates.” Compos. Struct. 236 (Mar): 111852. https://doi.org/10.1016/j.compstruct.2019.111852.
Mohotti, D., T. Ngo, P. Mendis, and S. N. Raman. 2013. “Polyurea coated composite aluminium plates subjected to high velocity projectile impact.” Mater. Des. 52 (24): 1–16. https://doi.org/10.1016/j.matdes.2013.05.060.
Pham, T. M., Y. Hao, and H. Hao. 2018. “Sensitivity of impact behaviour of RC beams to contact stiffness.” Int. J. Impact Eng. 112 (Feb): 155–164. https://doi.org/10.1016/j.ijimpeng.2017.09.015.
Pimanmas, A., and S. Saleem. 2018. “Dilation characteristics of PET FRP–confined concrete.” J. Compos. Constr. 22 (3): 04018006. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000841.
Saleem, S., A. Pimanmas, and W. Rattanapitikon. 2018. “Lateral response of PET FRP-confined concrete.” Constr. Build. Mater. 159 (Jan): 390–407. https://doi.org/10.1016/j.conbuildmat.2017.10.116.
Shi, C., J. Zhang, J. Zhang, M. Zhang, Q. Yan, Y. Zhao, Y. Yang, and F. Shao. 2022. “Experimental study and finite element analysis on impact resistance of large-rupture-strain FRP reinforced civil air defense wall.” Structures 41 (Jul): 511–524. https://doi.org/10.1016/j.istruc.2022.05.027.
Shi, S., Y. Liao, X. Peng, C. Liang, and J. Sun. 2019. “Behavior of polyurea-woven glass fiber mesh composite reinforced RC slabs under contact explosion.” Int. J. Impact Eng. 132 (Oct): 103335. https://doi.org/10.1016/j.ijimpeng.2019.103335.
Stouffer, D. C., and L. T. Dame. 1996. Inelastic deformation of metals: Models, mechanical properties, and metallurgy. New York: Wiley.
Tachibana, S., H. Masuya, and S. Nakamura. 2010. “Performance based design of reinforced concrete beams under impact.” Nat. Hazards Earth Syst. Sci. 10 (6): 1069–1078. https://doi.org/10.5194/nhess-10-1069-2010.
Wang, H., X. Deng, H. Wu, A. Pi, J. Li, and F. Huang. 2019. “Investigating the dynamic mechanical behaviors of polyurea through experimentation and modeling.” Defence Technol. 15 (6): 875–884. https://doi.org/10.1016/j.dt.2019.04.016.
Wu, G., C. Ji, X. Wang, F.-Y. Gao, C.-X. Zhao, Y.-J. Liu, and G.-L. Yang. 2022. “Blast response of clay brick masonry unit walls unreinforced and reinforced with polyurea elastomer.” Defence Technol. 18 (4): 643–662. https://doi.org/10.1016/j.dt.2021.03.004.
Xie, R., W. Fan, B. Liu, and D. Shen. 2020. “Dynamic behavior and vulnerability analysis of bridge columns with different cross-sectional shapes under rockfall impacts.” Structures 26 (Aug): 471–486. https://doi.org/10.1016/j.istruc.2020.04.042.
Xu, K., and Y. Lu. 2006. “Debris velocity of concrete structures subjected to explosive loading.” Int. J. Numer. Anal. Methods Geomech. 30 (9): 917–926. https://doi.org/10.1002/nag.504.
Yan, Z.-W., Y.-L. Bai, T. Ozbakkaloglu, W.-Y. Gao, and J.-J. Zeng. 2021. “Rate-dependent compressive behavior of concrete confined with large-rupture-strain (LRS) FRP.” Compos. Struct. 272 (Sep): 114199. https://doi.org/10.1016/j.compstruct.2021.114199.
Yan, Z.-W., Y.-L. Bai, T. Ozbakkaloglu, W.-Y. Gao, and J.-J. Zeng. 2022. “Axial impact behavior of large-rupture-strain (LRS) fiber reinforced polymer (FRP)-confined concrete cylinders.” Compos. Struct. 276 (Nov): 114563. https://doi.org/10.1016/j.compstruct.2021.114563.
Yang, H., H. Song, and S. Zhang. 2015. “Experimental investigation of the behavior of aramid fiber reinforced polymer confined concrete subjected to high strain-rate compression.” Constr. Build. Mater. 95 (Oct): 143–151. https://doi.org/10.1016/j.conbuildmat.2015.07.084.
Yoo, D.-Y., N. Banthia, S.-W. Kim, and Y.-S. Yoon. 2015. “Response of ultra-high-performance fiber reinforced concrete beams with continuous steel reinforcement subjected to low velocity impact loading.” Compos. Struct. 126 (Aug): 233–245. https://doi.org/10.1016/j.compstruct.2015.02.058.
Zeng, J.-J., Y.-Y. Ye, W.-Y. Gao, S. T. Smith, and Y.-C. Guo. 2020. “Stress-strain behavior of polyethylene terephthalate fiber-reinforced polymer-confined normal-, high- and ultra high-strength concrete.” J. Build. Eng. 30 (Jul): 101243. https://doi.org/10.1016/j.jobe.2020.101243.
Zeng, X. 2014. Experimental and numerical study of behaviors of RC beam and columns under impact loading and rapid loadings. Changsha, China: Hunan Univ.
Zhan, T., Z. Wang, and J. Ning. 2015. “Failure behaviors of reinforced concrete beams subjected to high impact loading.” Eng. Fail. Anal. 56 (Oct): 233–243. https://doi.org/10.1016/j.engfailanal.2015.02.006.
Zhang, P., Z. Wang, P. Zhao, L. Zhang, X. C. Jin, and Y. Xu. 2019. “Experimental investigation on ballistic resistance of polyurea coated steel plates subjected to fragment impact.” Thin-Walled Struct. 144 (Nov): 106342. https://doi.org/10.1016/j.tws.2019.106342.
Zhang, X., H. Hao, Y. Shi, J. Cui, and X. Zhang. 2016. “Static and dynamic material properties of CFRP/epoxy laminates.” Constr. Build. Mater. 114 (Jul): 638–649. https://doi.org/10.1016/j.conbuildmat.2016.04.003.
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Published In
Journal of Structural Engineering
Volume 149 • Issue 2 • February 2023
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Jun 30, 2022
Accepted: Sep 16, 2022
Published online: Nov 28, 2022
Published in print: Feb 1, 2023
Discussion open until: Apr 28, 2023
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