DOI QR코드

DOI QR Code

Numerical simulation of fracture and damage behaviour of concrete at different ages

  • Jin, Nanguo (Department of Civil Engineering, Zhejiang University) ;
  • Tian, Ye (Department of Civil Engineering, Zhejiang University) ;
  • Jin, Xianyu (Department of Civil Engineering, Zhejiang University)
  • 투고 : 2006.09.16
  • 심사 : 2007.06.29
  • 발행 : 2007.06.25

초록

Based on the experiment results, the damage and fracture behavior of concrete at the ages of 1d, 2d, 7d and 28d, in three-point bending and uniaxial tensile tests, were simulated with a finite element program, ABAQUS. The critical stress intensity factor $K_{IC}^s$ and the critical crack tip opening displacement ($CTOD_C$) of concrete were calculated with effective-elastic crack approach for the three-point bending test of grade C30 concrete. Based on the crack band model, a bilinear strain-softening curve was derived to simulate the LOAD-CMOD curves and LOAD-Displacement curves. In numerical analysis of the uniaxial tension test of concrete of grade C40, the damage and fracture mechanics were combined. The smeared cracking model coupling with damaged variable was adopted to evaluate the onset and development of microcracking of uniaxial tensile specimen. The uniaxial tension test was simulated by invoking the damage plastic model which took both damage and plasticity as inner variables with user subroutines. All the numerical simulated results show good agreement with the experimental results.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

참고문헌

  1. Bazant, Z. P. (2002), "Concrete fracture models: testing and practice", Eng. Fract. Mech., 69(2), 165-205. https://doi.org/10.1016/S0013-7944(01)00084-4
  2. Bazant, Z. P. and Becq-Giraudon, E. (2002), "Statistical prediction of fracture parameters of concrete and comparison of testing methods", Cement Concrete Res., 32(4), 529-556 APR 2002. https://doi.org/10.1016/S0008-8846(01)00723-2
  3. Bazant, Z. P. and Emilie, B.-G. (2002), "Statistical prediction of fracture parameters of concrete and implications for choice of testing standard", Cement Concrete Res., 32(4), 529-556. https://doi.org/10.1016/S0008-8846(01)00723-2
  4. Bazant, Z. P. and Planas, J. (1997), Fracture and Size Effect in Concrete and Other Quasibrittle Materials, Boca Baton, CRC Press.
  5. De, G., Schutter, M. and Vuylsteke (2004), "Minimisation of early age thermal cracking in a J-shaped nonreinforced massive concrete quay wall", Eng. Struct., 26(6), 801-808. https://doi.org/10.1016/j.engstruct.2004.01.013
  6. Guinea, G. V. and Elices, M. and Planas, J. (1997), "On the initial shape of the softening function of cohesive materials", J. Int J. Fract, 87(1), 49-139.
  7. Guinea, G. V., Planas. J. and Elices, M. (1994), "A general bilinear fit for the softening curve of concrete", J. Mater. Struct., 27(1), 99-105. https://doi.org/10.1007/BF02472827
  8. Hanson, J. H. and Ingraffea A. R. (2003), "Using numerical simulations to compare the fracture toughness values for concrete from the size-effect, two-parameter and fictitious crack models", Eng. Fract. Mech., 70, 1015-1027. https://doi.org/10.1016/S0013-7944(02)00163-7
  9. Hillerborg, A., Modéer, M. and Petersson, P.-E. (1976), "Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements", Cement Concrete Res., 6(6), November 1976, 773-781. https://doi.org/10.1016/0008-8846(76)90007-7
  10. Jenq, Y. S. and Shah, S. P. (1985), "Two parameter fracture model for concrete", J. Eng. Mech., 111(10), 1227-1241. https://doi.org/10.1061/(ASCE)0733-9399(1985)111:10(1227)
  11. Jin, X. Y., Jin, N. U. and Jin, X. (2004), "KIC and CTODC of young concrete", 8th International Symposium on Structural Engineering for Young, 2004.8.
  12. Jin, X. Y., Shen, Y., and Li, Z. J. (2005), "Behavior of high and normal strength concrete at early ages", Mag. Conc. Res., 57(6), 339-345. https://doi.org/10.1680/macr.2005.57.6.339
  13. Kim, J.-K., Lee, Y. and Yi, S.-T. (2004), "Fracture characteristics of concrete at early ages", Cement Concrete Res., 34, 507-519. https://doi.org/10.1016/j.cemconres.2003.09.011
  14. Li, Z. J. and Xianyu, J. (2004), "Investigation on relationship of prostity and fracture parameter of concrete at early-age", IntegratedLife-Cycle Management of Infrastructures, 2004. 11, pp85-91, Hong Kong, China.
  15. Niu, Y. Z., Chuanlin, T., Liang, R. Y. and Shuiwen, Z. (1995), "Modeling of thermomechanical damage of earlyage concrete", J. Struct. Eng., ASCE, 121(4), 1995, 717-726. https://doi.org/10.1061/(ASCE)0733-9445(1995)121:4(717)
  16. Oestergaard, L., Lange, D.A. and Stang, H. (2004), "Early-age stress-crack opening relationships for high performance concrete", Cement Concrete Compos., 26(5), 563-572. https://doi.org/10.1016/S0958-9465(03)00074-X
  17. Petersson, P. E. (1981), "Crack growth and development of fracture zones in plain concrete and similar materials", Report No. TVBM-1006, Division of Building materials, Lund Institute of Technology, Lund, Sweden, 1981.
  18. Planas, J., Elices, M. and Guinea, G. V. (1992), "Measurement of the fracture energy using three-point bend test: Part2-Influence of bulk energy dissipation", J. Mater. Struct, 25(4), 12-305.
  19. Roman Lackner, Herbert A. Mang (2004), "Chemoplastic material model for the simulation of early-age cracking: From the constitutive law to numerical analyses of massive concrete structures", Cement Concrete Compos., 26(5), 551-562. https://doi.org/10.1016/S0958-9465(03)00071-4
  20. Shang, Renjie, Zhao, Guofan and Huang, Chengkui (1996), "Experimental investigation of complete stressdeformation curves for concrete under low frequency cyclic load", J. Hydraulic Eng., 7, 82-87.

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