Advanced SearchSearch Tips
Numerical simulation of reinforced concrete nuclear containment under extreme loads
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Numerical simulation of reinforced concrete nuclear containment under extreme loads
Tamayo, Jorge Luis Palomino; Awruch, Armando Miguel;
A finite element model for the non-linear dynamic analysis of a reinforced concrete (RC) containment shell of a nuclear power plant subjected to extreme loads such as impact and earthquake is presented in this work. The impact is modeled by using an uncoupled approach in which a load function is applied at the impact zone. The earthquake load is modeled by prescribing ground accelerations at the base of the structure. The nuclear containment is discretized spatially by using 20-node brick finite elements. The concrete in compression is modeled by using a modified -Prager elasto-plastic constitutive law where strain rate effects are considered. Cracking of concrete is modeled by using a smeared cracking approach where the tension-stiffening effect is included via a strain-softening rule. A model based on fracture mechanics, using the concept of constant fracture energy release, is used to relate the strain softening effect to the element size in order to guaranty mesh independency in the numerical prediction. The reinforcing bars are represented by incorporated membrane elements with a von Mises elasto-plastic law. Two benchmarks are used to verify the numerical implementation of the present model. Results are presented graphically in terms of displacement histories and cracking patterns. Finally, the influence of the shear transfer model used for cracked concrete as well as the effect due to a base slab incorporation in the numerical modeling are analyzed.
reinforced concrete structures (RC);finite element method (FEM);impact and seismic loads;
 Cited by
Abbas, H., Paul, D.K., Godbole, P.N. and Nayak, G.C. (1996), "Aircraft crash upon outer containment of nuclear power plant", Nucl. Eng. Des., 160(1), 13-50. crossref(new window)

Cervera, M. (1986), "Nonlinear analysis of reinforced concrete structures using three dimensional and shell finite element models", Ph.D. Dissertation, Swansea University, Swansea.

Cervera, M., Hinton, E. and Bicanic, N. (1988), "Non-linear transient dynamic analysis of three dimensional structures", Numerical Methods and Software for Dynamic Analysis of Plates and Shells, E. Hinton, R.W., Pineridge Press, Swansea, U.K.

Dias, M.M., Tamayo, J.L.P., Morsch, I.B. and Awruch, A.M. (2015), "Time dependent finite element analysis of steel-concrete composite beams considering partial interaction", Comput. Concrete, 15(4), 687-707. crossref(new window)

Hu, H.T. and Liang, J.I. (2000), "Ultimate analysis of BWR Mark III reinforced concrete containment subjected to internal pressure", Nucl. Eng. Des., 195, 1-11. crossref(new window)

Iqbal, M.A., Rai, S., Sadique M.R., and Bhargava, P. (2012), "Numerical simulation of aircraft crash on nuclear containment structure", Nucl. Eng. Des., 243, 321-335. crossref(new window)

Kamagata, S. and Takewaki, I. (2013), "Ocurrence mechanism of recent large earthquake ground motions at nuclear power plant sites in Japan under soil-structure interaction", Earthq. Struct., 5(4), 557-585.

Kukreja, M. (2005), "Damage evaluation of 500 MWe Indian pressurized heavy water reactor nuclear containment for aircraft impact", Nucl. Eng. Des., 235(17-19), 1807-1817. crossref(new window)

Liu, G.Q. (1985), "Nonlinear and transient finite element analysis of general reinforced concrete plates and shells", Ph.D. Dissertation, Swansea University, Swansea.

Manjuprasad, M., Gopalakrishnan, S. and Appa Rao, T.V.S.R (2001), "Nonlinear dynamic response of a reinforced concrete secondary containment shell subjected to seismic load", Eng. Struct., 23(5), 397-406. crossref(new window)

Pandey, A.K. (2010), "Damage prediction of RC containment shell under impact and blast loading", Struct. Eng. Mech., 36(6), 729-744. crossref(new window)

Pandey, A.K., Kumar, R., Paul, D.K. and Trikha, D.N. (2006), "Strain rate model for dynamic analysis of reinforced concrete structures", J. Struct. Eng., 132(9), 1393-1401. crossref(new window)

Rebora, B. and Zimmermann, Th. (1976), "Dynamic rupture analysis of reinforced concrete shells", Nucl. Eng. Des., 37(2), 269-297. crossref(new window)

Sadique, M.R., Iqbal, M.A. and Bhargava, P. (2015), "Crash analysis of military aircraft on nuclear contaiment", Struct. Eng. Mech., 53(1), 73-87. crossref(new window)

Sayed, M.A, Go, S., Cho S.G. and Kim, D. (2015), "Seismic responses of base isolated nuclear power plant structures considering spatially varying ground motions", Struct. Eng. Mech., 54(1), 169-188. crossref(new window)

Schenk, O. and Gartner, K. (2004), "Solving unsymmetric sparse systems of linear equations with PARDISO", J. Future Gener. Comput. Syst., 20(3), 475-487. crossref(new window)

Tamayo, J.L.P. (2015), "Numerical simulation of soil-pile interaction by using the finite element method", Ph.D. Dissertation, Federal University of Rio Grande do Sul, Porto Alegre.

Tamayo, J.L.P., Awruch, A.M. and Morsch, I.B. (2013b), "Numerical modeling of reinforced concrete structures: static and dynamic analysis", Revista Escola de Minas, 66(4), 425-430. crossref(new window)

Tamayo, J.L.P., Morsch, I.B. and Awruch, A.M. (2013a), "Static and dynamic analysis of reinforced concrete shells", Latin Am. J. Solid. Struct., 10(6), 1109-1134. crossref(new window)