Structural Engineering and Mechanics

  • 제37권2호
  • /
  • Pages.215-231
  • /
  • 2011
  • /
  • 1225-4568(pISSN)
  • /
  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Mesoscale modelling of concrete for static and dynamic response analysis -Part 2: numerical investigations

  • Lu, Yong (Institute for Infrastructure and Environment, Joint Research Institute for Civil and Environmental Engineering, School of Engineering, The University of Edinburgh) ;
  • Tu, Zhenguo (IKM Ocean Design As)
  • 투고 : 2009.10.19
  • 심사 : 2010.09.27
  • 발행 : 2011.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

As a brittle and heterogeneous material, concrete behaves differently under different stress conditions and its bulk strength is loading rate dependent. To a large extent, the varying behavioural properties of concrete can be explained by the mechanical failure processes at a mesoscopic level. The development of a computational mesoscale model in a general finite element environment, as presented in the preceding companion paper (Part 1), makes it possible to investigate into the underlying mechanisms governing the bulk-scale behaviour of concrete under a variety of loading conditions and to characterise the variation in quantitative terms. In this paper, we first present a series of parametric studies on the behaviour of concrete material under quasi-static compression and tension conditions. The loading-face friction effect, the possible influences of the non-homogeneity within the mortar and ITZ phases, and the effect of randomness of coarse aggregates are examined. The mesoscale model is then applied to analyze the dynamic behaviour of concrete under high rate loading conditions. The potential contribution of the mesoscopic heterogeneity towards the generally recognized rate enhancement of the material compressive strength is discussed.

키워드

참고문헌

  1. Agioutantis, Z., Chatzopoulou, E. and Stavroulaki, M. (2000), "A numerical investigation of the effect of the interfacial zone in the concrete mixture under uniaxial compression: the case of the dilute limit", Cement Concrete Res., 30(7), 715-723. https://doi.org/10.1016/S0008-8846(00)00240-4
  2. ASM (2000), Metals Handbook, Vol. 8, Mechanical Testing & Evaluation.
  3. Bazant, Z.P. and Pfeiffer, P.A. (1987), "Determination of fracture energy from size effect and brittleness number", ACI Mater. J., 84, 463-480.
  4. CEB (1993), CEB-FIP Model Code 1990, Comite Euro-International du Beton, Redwood Books.
  5. Dong, A.A., Lu, Y. and Ma, G.W. (2006), "Numerical simulation study of strain rate effect on dynamic behaviour of concrete material", Proceeding of the Design and Analysis of Protective Structures (DAPS06), Singapore, 280-288.
  6. Eckardt, S., Hafner, S. and Konke, C. (2004), "Simulation of the fracture behaviour of concrete using continuum damage models at the mesoscale", Proceedings of ECCOMAS, Jyvaskyla.
  7. Gopalaratnam, V.S. and Shah, S.P. (1985), "Softening response of plain concrete in direct tension", ACI J., 82(3), 310-323.
  8. Grote, D.L., Park, S.W. and Zhou, M. (2001), "Dynamic behaviour of concrete at high strain rates and pressures: I. experimental characterization", Int. J. Impact. Eng., 25, 869-886. https://doi.org/10.1016/S0734-743X(01)00020-3
  9. Li, Q.M. and Meng, H. (2003), "About the dynamic strength enhancement of concrete-like materials in a split Hopkinson pressure bar test", Int. J. Impact Eng., 40, 343-360.
  10. LS-DYNA (2007), Keyword User's Manual, Version 971, Livermore Software Technology Corporation.
  11. Mindess, S., Young, J.F. and Darwin, D. (2003), Concrete, 2nd Edition, Prentice Hall.
  12. Nagai, K., Sato, Y. and Ueda, T. (2005), "Mesoscopic simulation of failure of mortar and concrete by 3D RBSM", J. Adv. Concrete Tech., 3(3), 385-402. https://doi.org/10.3151/jact.3.385
  13. Park, S.W., Xia, Q. and Zhou, M. (2001), "Dynamic behaviour of concrete at high strain rates and pressures: I. numerical simulation", Int. J. Impact. Eng., 25, 887-910. https://doi.org/10.1016/S0734-743X(01)00021-5
  14. Tedesco, J.W., Hughes, M.L. and Ross, C.A. (1994), "Numerical simulation of high strain rate concrete compression tests", Comput. Struct., 51(1), 65-77. https://doi.org/10.1016/0045-7949(94)90037-X
  15. Tu, Z.G. and Lu, Y. (2011), "Mesoscale modelling of concrete for static and dynamic response analysis, Part 1: Model development and implementation", Struct. Eng. Mech., 37(2), 197-213. https://doi.org/10.12989/sem.2011.37.2.197
  16. Ueda, M., Hasebe, N. and Sato, M. (1993), "Okuda H. Fracture mechanism of plain concrete under uniaxial tension". J Mater. Concrete Struct. Pavements, 19, 69-78. (in Japanese)
  17. van Vliet, M.R.A. and van Mier, J.G.M. (1996), "Experimental investigation of concrete fracture under uniaxial compression", Mech. Cohes. Fract. Mater., 1, 115-127. https://doi.org/10.1002/(SICI)1099-1484(199601)1:1<115::AID-CFM6>3.0.CO;2-U
  18. Zhou, X.Q. and Hao, H. (2008), "Modelling of compressive behaviour of concrete-like materials at high strain rate". Int. J. Solids Struct., 45, 4648-4661. https://doi.org/10.1016/j.ijsolstr.2008.04.002

피인용 문헌

  1. 3D mesoscale finite element modelling of concrete vol.192, 2017, https://doi.org/10.1016/j.compstruc.2017.07.009
  2. Mesoscale modelling of concrete for static and dynamic response analysis -Part 1: model development and implementation vol.37, pp.2, 2011, https://doi.org/10.12989/sem.2011.37.2.197
  3. Analysis on the dynamic characteristics of RAC frame structures vol.64, pp.4, 2011, https://doi.org/10.12989/sem.2017.64.4.461
  4. Validation and Investigation on the Mechanical Behavior of Concrete Using a Novel 3D Mesoscale Method vol.12, pp.16, 2011, https://doi.org/10.3390/ma12162647
  5. Interfacial transition zones in concrete meso-scale models – Balancing physical realism and computational efficiency vol.293, pp.None, 2011, https://doi.org/10.1016/j.conbuildmat.2021.123332