Nuclear power plants (NPPs) are considered as the main source for generating
electricity nowadays in some countries. The effect of impact of heavy fully
loaded aeroplane such as (Boeing 747-200c) causes leakage of the radiation
through the cracks generated on the external RC containment of NPPs, and this
leads to severe damage for humans and cities. In this research paper, external
RC containment is modeled using ANSYS and hit by Boeing 747-200c which is the heavier
aeroplane compared to other jets and causes severe damage for external RC
containment. In addition, the impact location for Boeing 747-200c is considered
at 30m vertical height. RC containment response was studied after the impact
of an aeroplane and a proposed structural health monitoring technique is
applied using embedded sensors in order to detect and locate the embedded
cracks that is generated due to the effect of impact of heavy aeroplane. It was
concluded that RC containment is intact except for the impact region which is
damaged. An experimental program was applied on a part of the element in ANSYS
which is away from the impact region. Four specimens were cast using heavy
weight concrete in laboratory. Three cracked specimens consist of different
lengths of vertical cracks which represent different times of impact in order
to replicate crack propagation as in ANSYS. The cracks are simulated inside laboratory
specimens using failure criteria. The parameters used in detecting the cracks
for specimens are the percentage change in electrical resistivity and Decimal
Logarithm Resistivity Anisotropy (DLRA) at which they give a good indication
for the presence of the crack.
References
[1]
Lataste, J.F., Sirieix, C., Breysse, D. and Frappa, M. (2003) Electrical Resistivity Measurement Applied to Cracking Assessment on Reinforced Concrete Structures in Civil Engineering. NDT & E International, 36, 383-394. https://doi.org/10.1016/S0963-8695(03)00013-6
[2]
Elmasry, M.I.S., ElAshkar, N.H. and Alasadi, M.F.A. (2012) Damage Identification in RC Beams Using Internal Electrical Resistivity Measurements. International Conference on Sustainable Design, Engineering, and Construction, Fort Worth, 7-9 November 2012, 801-809. https://doi.org/10.1061/9780784412688.096
[3]
Elashkar, N.H., Elmasry, M.I.S. and Anndif, M.A.A. (2012) Damage Detection and Localization by Interpretation of Square Inner Electrical Resistivity Measurements. Sixth European Workshop on Structural Health Monitoring, Dresden, 3-6 July 2012, 1-10.
[4]
Layssi, H., Ghods, P., Alizadeh, A.R. and Salehi, M. (2015) Electrical Resistivity of Concrete. Concrete International, 37, 41-46.
[5]
Silva, P.C., Ferreira, R.M. and Figueiras, H. (2011) Electrical Resistivity as a Means of Quality Control of Concrete—Influence of Test Procedure. XII DBMC International Conference on Durability of Building Materials and Components, Porto, 12-15 April 2011, 1-8.
[6]
Madhavi, T.C.H. and Annamalai, S. (2016) Electrical Conductivity of Concrete. ARPN Journal of Engineering and Applied Sciences, 11, 5979-5982.
[7]
Gowers, K.R. and Millard, S.G. (1999) Measurement of Concrete Resistivity for Assessment of Corrosion Severity of Steel Using Wenner Technique. ACI Material Journal, 96, 536-541. https://doi.org/10.14359/655 https://www.concrete.org/publications/acimaterialsjournal.aspx
[8]
Sengul, O. and Gjorv, O.E. (2009) Effect of Embedded Steel on Electrical Resistivity Measurements on Concrete Structures. ACI Materials Journal, 106, 11-18. https://doi.org/10.14359/56311
[9]
Shahroodi, A. (2010) Development of Test Methods for Assessment of Concrete Durability for Use in Performance-Based Specifications. Masters of Applied Science (M.A.Sc.) Thesis, University of Toronto, Toronto.
[10]
Polder, R.B. (2000) RILEM TC 154-EMC: Electrochemical Techniques for Measuring Metallic Corrosion. Materials and Structures, 33, 603-611. https://doi.org/10.1007/BF02480599
[11]
Ferreira, R.M. and Jalali, S. (2010) NDT Measurements for the Prediction of 28-Day Compressive Strength. NDT & E International, 1, 55-61. https://doi.org/10.1016/j.ndteint.2009.09.003
[12]
Morris, W., Moreno, E.I. and Sagues, A.A. (1996) Practical Evaluation of Resistivity of Concrete in Test Cylinders Using a Wenner Array Probe. Cement and Concrete Research, 26, 1779-1787. https://doi.org/10.1016/S0008-8846(96)00175-5
[13]
McCarter, W.J., Starrs, G., Kandasami, S., Jones, R. and Chrisp, M. (2009) Electrode Configuration for Resistivity Measurements on Concrete. ACI Materials Journal, 106, 258-264. https://doi.org/10.14359/56550 https://researchportal.hw.ac.uk/en/publications/electrode-configurations-for-resistivity-measurements-on-concrete
[14]
Mehta, K.P. and Monteiro, P.J. (2006) Concrete Microstructure, Properties, and Materials. Electronic Book, McGraw-Hill Education, London, 529-531.
[15]
ASCE Standard 58 (1980) Structural Analysis and Design of Nuclear Plant Facilities.
[16]
Czerniewski, S. (2009) The Feasibility of Modern Technologies for Reinforced Concrete Containment Structures of Nuclear Power Plants. Report of Master Science, KANSAS State University, Manhattan.
[17]
Salman, W.D. (2015) Nonlinear Behavior of Reinforced Concrete Continuous Deep Beam. International Journal of Engineering Research & Technology (IJERT), 4, 2278-2281. https://doi.org/10.17577/IJERTV4IS040460
[18]
Teh Hu, H. and Liang, J.I. (2015) Ultimate Analysis of BWR Mark III RC Containment Subjected to Internal Pressure. Nuclear Engineering and Design, 195, 1-11. https://doi.org/10.1016/S0029-5493(99)00163-6
[19]
William, K.J. and Warnke, E.P. (1974) Constitutive Model for the Tri-Axial Behaviour of Concrete. IABSE Reports of the Working Commissions, Bergamo.
[20]
ANSYS12.1 (2012) Theory Reference Manual.
[21]
Forasassi, G. and Lofrano, R. (2010) Preliminary Analysis of an Aircraft Impact. A Report of Ricerca di Sistema Elettrico.
[22]
Riera, J.D. (1968) On the Stress Analysis of Structures Subjected to Aircraft Impact Forces. Nuclear Engineering Design, 8, 415-426. https://doi.org/10.1016/0029-5493(68)90039-3
[23]
James, R.J. and Rashid, J.Y.R. (2005) Severe Impact Dynamics of Reinforced Concrete Structures. 6th European Conference on Structural Dynamics, Paris, 4-7 September 2005, 1-7.
[24]
Iliev, V., Georgiev, K. and Serbezov, V. (2011) Assessment of Impact Load Curve of Boeing 747-400. MTM Virtual, 1, 22-25.
[25]
Ouda, A.S. (2014) Development of High-Performance Heavy Density Concrete Using Different Aggregates for Gamma-Ray Shielding. Progress in Nuclear Energy, 79, 48-55. https://doi.org/10.12989/amr.2014.3.2.061
