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A meso-scale approach to modeling thermal cracking of concrete induced by water-cooling pipes

  • Zhang, Chao (State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University) ;
  • Zhou, Wei (State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University) ;
  • Ma, Gang (State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University) ;
  • Hu, Chao (State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University) ;
  • Li, Shaolin (State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University)
  • 투고 : 2014.08.29
  • 심사 : 2015.01.30
  • 발행 : 2015.04.25

초록

Cooling by the flow of water through an embedded cooling pipe has become a common and effective artificial thermal control measure for massive concrete structures. However, an extreme thermal gradient induces significant thermal stress, resulting in thermal cracking. Using a mesoscopic finite-element (FE) mesh, three-phase composites of concrete namely aggregate, mortar matrix and interfacial transition zone (ITZ) are modeled. An equivalent probabilistic model is presented for failure study of concrete by assuming that the material properties conform to the Weibull distribution law. Meanwhile, the correlation coefficient introduced by the statistical method is incorporated into the Weibull distribution formula. Subsequently, a series of numerical analyses are used for investigating the influence of the correlation coefficient on tensile strength and the failure process of concrete based on the equivalent probabilistic model. Finally, as an engineering application, damage and failure behavior of concrete cracks induced by a water-cooling pipe are analyzed in-depth by the presented model. Results show that the random distribution of concrete mechanical parameters and the temperature gradient near water-cooling pipe have a significant influence on the pattern and failure progress of temperature-induced micro-cracking in concrete.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

참고문헌

  1. Amin, M.N., Kim, J.S., Lee, Y. and Kin, J.K. (2009), "Simulation of the thermal stress in mass concrete using a thermal stress measuring device", Cement Concrete Res., 39(3), 154-164. https://doi.org/10.1016/j.cemconres.2008.12.008
  2. Wittmann, F.H., Roelfstra P.E. and Sadouki H. (1985), "Simulation and analysis of composite structures", Mater. Sci. Eng., 68(2), 239-248. https://doi.org/10.1016/0025-5416(85)90413-6
  3. Yasar, Ergul, Yasin Erdogan, and Alaettin Kilic, (2004), "Effect of limestone aggregate type and water- cement ratio on concrete strength", Mater. letters, 58(5), 772-777. https://doi.org/10.1016/j.matlet.2003.06.004
  4. Elices, M. and Rocco, C.G. (2008), "Effect of aggregate size on the fracture and mechanical properties of a simple concrete", Eng. Fract. Mech., 75(13), 3839-3851. https://doi.org/10.1016/j.engfracmech.2008.02.011
  5. Rocco, C.G. and Elices, M. (2009) "Effect of aggregate shape on the mechanical properties of a simple concrete", Eng. Fract. Mech., 76(2), 286-298. https://doi.org/10.1016/j.engfracmech.2008.10.010
  6. He, H., Stroeven, P., Stroeven, M. and Sluys, L.J. (2011), "Influence of particle packing on fracture properties of concrete", Comput. Concr., 8(6), 677-692. https://doi.org/10.12989/cac.2011.8.6.677
  7. Yan, D., and Lin, G., (2006), "Dynamic properties of concrete in direct tension", Cement Concrete Res., 36(7), 1371-1378. https://doi.org/10.1016/j.cemconres.2006.03.003
  8. Almusallam, A.A., Beshr, H., Maslehuddin, M. and Al-Amoudi, O.S. (2004), "Effect of silica fume on the mechanical properties of low quality coarse aggregate concrete", Cement Concrete Compos., 26(7), 891-900. https://doi.org/10.1016/j.cemconcomp.2003.09.003
  9. Tang, X.W., Zhou, Y., Zhang, C.H. and Shi, J. (2011), "Study on the heterogeneity of concrete and its failure behavior using the equivalent probabilistic model", J. Mater. Civil Eng., 23(4), 402-413. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000179
  10. Peerlings, R.H.J. (1999), "Enhaced damage modelling for fracture and fatigue: Proefschrift", Technische Universiteit Eindhoven.
  11. Jirasek, M. and Marfia, S. (2005), "Non-local damage model based on displacement averaging", Int. J. Numer. Method. Eng., 63(1), 77-102. https://doi.org/10.1002/nme.1262
  12. Wells, G.N. and Sluys, L.J. (2001), "A new method for modelling cohesive cracks using finite elements", Int. J. Numer. Method. Eng., 50(12), 2667-2682. https://doi.org/10.1002/nme.143
  13. Wanne, T.S and Young, R.P. (2008), "Bonded-particle modeling of thermally fractured granite", Int. J. Rock Mech. Min. Sci., 45(5), 789-799. https://doi.org/10.1016/j.ijrmms.2007.09.004
  14. Azevedo, N.M., de Lemos, J.V. and de Almeida J.R. (2010), "A discrete particle model for reinforced concrete fracture analysis", Struct. Eng. Mech., 36(3), 343-361. https://doi.org/10.12989/sem.2010.36.3.343
  15. Grassl, P., and Jirasek, M., (2010), "Meso-scale approach to modelling the fracture process zone of concrete subjected to uniaxial tension", Int. J. Solids Struct., 47(7), 957-968. https://doi.org/10.1016/j.ijsolstr.2009.12.010
  16. Qian, Z., Ye, G., Schlangen, E. and Van Breugel, K. (2011), "3D lattice fracture model: application to cement paste at micro scale", Key Eng. Mater., 452, 65-68.
  17. Tang, C.A. and Zhu, W.C. (2003), Concrete Damage and Fracture Numerical Simulate, Science Press, Beijing, China.
  18. Zhou, X.Q. and Hao, H. (2008), "Mesoscale modelling of concrete tensile failure mechanism at high strain rates", Comput. Struct., 86(21), 2013-2026. https://doi.org/10.1016/j.compstruc.2008.04.013
  19. Walraven, J. (1981), "Theory and experiments on the mechanical behavior of cracks in plain and reinforced concrete subjected to shear loading", Heron, 26(1).
  20. Wang, Z.M., Kwan, A.K.H. and Chan, H.C. (1999), "Mesoscopic study of concrete I: generation of random aggregate structure and finite element mesh", Comput. Struct., 70(5), 533-544. https://doi.org/10.1016/S0045-7949(98)00177-1
  21. Van Mier, J.G.M. and Shi, C. (2002), "Stability issues in uniaxial tensile tests on brittle disordered materials", Int. J. Solids Struct., 39(13), 3359-3372. https://doi.org/10.1016/S0020-7683(02)00159-2
  22. Bazant, Z.P. and Oh, B H. (1983), "Crack band theory for fracture of concrete", Mater. Struct., 16(93), 155-177.
  23. Brekelmans, W.A.M. and De Vree, J.H.P. (1995), "Reduction of mesh sensitivity in continuum damage mechanics", Acta Mech., 110(1-4), 49-56. https://doi.org/10.1007/BF01215415
  24. Tang, X.W., Zhang, C.H. and Shi, J.J. (2008), "A multiphase mesostructure mechanics approach to the study of the fracture-damage behavior of concrete", Sci. China Series E: Tech. Sci., 51(2), 8-24. https://doi.org/10.1007/s11431-008-6005-2
  25. Galvez, J.C., Elices, M., Guinea, G.V. and Planas, J. (1998), "Mixed mode fracture of concrete under proportional and nonproportional loading", Int. J. Fract., 94(3), 267-284. https://doi.org/10.1023/A:1007578814070
  26. Zhu, B.F. (2013), "Thermal stresses and temperature control of mass concrete", China Electric Power Press, Beijing, China, 67-70.
  27. Tang S.B. and Tang, C.A. (2009), "Numerical approach on the thermo-mechanical coupling of brittle material", Chinese J. Comput. Mech., 26(2), 172-179.
  28. Hafner, Stefan, Stefan Eckardt, Torsten Luther, Carsten Konke, (2006), "Mesoscale modeling of concrete: Geometry and numeric", Comput. Struct., 84(7), 450-461. https://doi.org/10.1016/j.compstruc.2005.10.003

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