Browse > Article
http://dx.doi.org/10.12989/scs.2019.30.3.217

Experimental and numerical investigation of RC sandwich panels with helical springs under free air blast loads  

Rashad, Mohamed (Department of Civil Engineering, University of British Columbia)
Wahab, Mostafa M.A. (Department of Civil Engineering, Military Technical Collage)
Yang, T.Y. (International Joint Research Laboratory of Earthquake Engineering, Tongji University)
Publication Information
Steel and Composite Structures / v.30, no.3, 2019 , pp. 217-230 More about this Journal
Abstract
One of the most important design criteria in underground structure is to design lightweight protective layers to resist significant blast loads. Sandwich blast resistant panels are commonly used to protect underground structures. The front face of the sandwich panel is designed to resist the blast load and the core is designed to mitigate the blast energy from reaching the back panel. The design is to allow the sandwich panel to be repaired efficiently. Hence, the underground structure can be used under repeated blast loads. In this study, a novel sandwich panel, named RC panel - Helical springs- RC panel (RHR) sandwich panel, which consists of normal strength reinforced concrete (RC) panels at the front and the back and steel compression helical springs in the middle, is proposed. In this study, a detailed 3D nonlinear numerical analysis is proposed using the nonlinear finite element software, AUTODYN. The accuracy of the blast load and RHR Sandwich panel modelling are validated using available experimental results. The results show that the proposed finite element model can be used efficiently and effectively to simulate the nonlinear dynamic behaviour of the newly proposed RHR sandwich panels under different ranges of free air blast loads. Detailed parameter study is then conducted using the validated finite element model. The results show that the newly proposed RHR sandwich panel can be used as a reliable and effective lightweight protective layer for underground structures.
Keywords
lightweight sandwich panel; RHR; helical springs; free air blast loads; RHT;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Johnson, G.R. and Cook, W.H. (1983), "A constitutive model and data for metals subjected to large strains, high strain rates and high temperatures", Proceedings of the 7th International Symposium on Ballistics, The Hague, Netherlands, April.
2 Li, X., Miao, C., Wang, Q. and Geng, Z. (2016), "Antiknock performance of interlayered high-damping-rubber blast door under thermobaric shock wave", Shock Vib., Article ID 2420893, 9 pages.
3 Luccioni, B., Araoz, G. and Labanda, N. (2013), "Defining erosion limit for concrete", Int. J. Protect. Struct., 4(3), 315-355.   DOI
4 Mazek, S.A. (2014), "Performance of sandwich structure strengthened by pyramid cover under blast effect", Struct. Eng. Mech., Int. J., 50(4), 471-486.   DOI
5 Mazek, S. and Mostafa, A. (2013), "Impact of a shock wave on a structure strengthened by rigid polyurethane foam", J. Struct. Eng. Mech., Int. J., 48(4), 569-585.   DOI
6 Nurick, G.N., Langdon, G.S., Chi, Y. and Jacob, N. (2009), "Behaviour of sandwich panels subjected to intense air blast - Part 1: Experiments", Compos. Struct., 91, 433-441.   DOI
7 Nystrom, U. and Gylltoft, K. (2009), "Numerical studies of the combined effects of blast and fragment loading", Int. J. Impact Eng., 36(8), 995-1005.   DOI
8 Nystrom, U. and Gylltoft, K. (2011), "Comparative numerical studies of projectile impacts on plain and steel-fiber reinforced concrete", Int. J. Impact Eng., 38(23), 95-105.   DOI
9 Prawoto, Y., Ikeda, M., Manville, S.K. and Nishikawa, A. (2008), "Design and failure modes of automotive suspension springs", Eng. Fail. Anal., 15, 1155-1174.   DOI
10 Rashad, M. (2013), "Study the Behavior of Composite Sandwich Structural Panels under Explosion Using Finite Element Method", M.Sc. Thesis; Military Technical College (MTC), Cairo, Egypt.
11 Ansys (2007), Theory reference manual; Release 11.0, ANSYS Inc., USA.
12 Hu, G., Wu, J. and Li, L. (2016), "Advanced Concrete Model in Hydrocode to Simulate Concrete Structures under Blast Loading", Adv. Civil Eng., 2016, 1-13.
13 Rashad, M. and Yang, T.Y. (2018), "Numerical study of steel sandwich plates with RPF and VR cores materials under free air blast loads", Steel Compos. Struct., Int. J., 27(6), 717-725.
14 Rashad, M. and Yang, T.Y. (2019), "Improved nonlinear modelling approach of simply supported PC slab under free blast load using RHT model", Comput. Concrete, Int. J. [Accepted]
15 Riedel, W. (2000), "Beton unter dynamischen Lasten Meso- und makromechanische Modelle und ihre Parameter", Doctoral Thesis; Institut Kurzzeitdynamik, Ernst-Mach-Institut, der Bundeswehr Munchen, Freiburg, Germany. [In German]
16 Riedel, W., Thoma, K. and Hiermaier, S. (1999), "Penetration of reinforced concrete by BETA-B-500 numerical analysis using a new macroscopic concrete model for hydrocodes", Proceedings of 9th International Symposium on Interaction of The Effect of Munitions with Structures, Berlin-Strausberg, Germany, January.
17 Autodesk Inventor (2017), Professional manual; Autodesk Inc., USA.
18 AUTODYN (2005), Theory manual revision 4.3; Horsham, Century Dynamics Ltd., UK.
19 Codina, R., Ambrosini, D. and Borbon, F. (2016), "Experimental and numerical study of a RC member under a close-in blast loading", Struct. Eng., 127, 145-158.   DOI
20 CONWEP (1991), Conventional Weapons Effects Program; US Army Waterways Experiment Station, Vicksburg, MS, USA.
21 Hao, H., Ma, G.W. and Zhou, Y.X. (1998), "Numerical simulation of underground explosions", Fragblast Int. J. Blasting Fragment., 2, 383-395.
22 Tu, Z. and Lu, Y. (2010), "Modifications of RHT material model for improved numerical simulation of dynamic response of concrete", Int. J. Impact Eng., 37(10), 1072-1082.   DOI
23 Herrmann, W. (1969), "Constitutive equation for the dynamic compaction of ductile porous materials", J. Appl. Phys., 40(6), 2490-2499.   DOI
24 Riedel, W., Wicklein, M. and Thoma, K. (2008), "Shock properties of conventional and high strength concrete, experimental and mesomechanical analysis", Int. J. Impact Eng., 35, 155-171.   DOI
25 Shimozaki, M. (1997), FEM for springs, Nikkan Kogyo Shimbunsha, Japan Society of Spring Engineers. [In Japanese]
26 Technical Manual TM5-1300 (1990), Structures to resist the effects of accidental explosions; U.S. Army, USA.
27 Tu, Z. and Lu, Y. (2009), "Evaluation of typical concrete material models used in hydrocodes for high dynamic response simulations", Int. J. Impact Eng., 36(1), 132-146.   DOI
28 UFC 3-340-02 (UNIFIED FACILITIES CRITERIA), (2008), Structures to resist the effects of accidental explosions; U.S. Army corps of engineers, USA.
29 Vinson, J.R. (2001), "Sandwich structures", Appl. Mech. Rev., 54(3), 201-214.   DOI
30 Wahab, M.M.A. and Mazek, S.A. (2016), "Performance of double reinforced concrete panel against blast hazard", Comput. Concrete, Int. J., 18(6), 807-826.   DOI
31 Wang, G. and Zhang, S. (2014), "Damage prediction of concrete gravity dams subjected to underwater explosion shock loading", Eng. Fail Anal., 39, 72-91.   DOI
32 Wang, W., Zhang, D., Lu, F.Y., Wang, S.C. and Tang, F.J. (2013), "Experimental study and numerical simulation of the damage mode of a square reinforced concrete slab under close-in explosion", Eng. Fail. Anal., 27, 41-51.   DOI
33 Wu, C., Hao, H. and Zhou, Y.X. (1999), "Dynamic response analysis of rock mass with stochastic properties subjected to explosive loads", Fragblast Int. J. Blast. Fragment., 3, 137-153.
34 Zhu, F. (2008), "Impulsive Loading of Sandwich Panels with Cellular Cores", Ph.D. Dissertation; Swinburne University of Technology, Hawthorn, Australia.
35 Xia, Z., Wang, X., Fan, H., Li, Y. and Jin, F. (2016), "Blast resistance of metallic tube-core sandwich panels", Int. J. Impact Eng., 97, 10-28.   DOI
36 Xu, K. and Lu, Y. (2006), "Numerical simulation study of spallation in reinforced concrete plates subjected to blast loading", Comput. Struct., 84(5), 431-439.   DOI
37 Zhou, X.Q. and Hao, H. (2008), "Numerical prediction of reinforced concrete exterior wall response to blast loading", Adv. Struct. Eng., 11(4), 355-367.   DOI