Structural Engineering and Mechanics

  • 제5권6호
  • /
  • Pages.679-689
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  • 1997
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

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A comprehensive description for damage of concrete subjected to complex loading

  • Meyer, Christian (Department of Civil Engineering and Engineering Mechanics, Columbia University) ;
  • Peng, Xianghe (Department of Engineering Mechanics, Chongqing University)
  • 발행 : 1997.11.25
⟨ 이전 논문 다음 논문 ⟩

초록

The damage of concrete subjected to multiaxial complex loading involves strong anisotropy due to its highly heterogeneous nature and the geometrically anisotropic characteristic of the microcracks. A comprehensive description of concrete damage is proposed by introducing a fourth-order anisotropic damage tenser. The evolution of damage is assumed to be related to the principal components of the current states of stress and damage. The unilateral effect of damage due to the closure and opening of microcracks is taken into account by introducing projection tensors that are also determined by the current state of stress. The proposed damage model considers the different kinds of damage mechanisms that result in different failure modes and different patterns of microdefects that cause different unilateral effects. This damage model is embedded in a thermomechanically consistent constitutive equation in which hardening and the triaxial compression caused shear-enhanced compaction can also be taken into account. The validity of the proposed model is verified by comparing theoretical and experimental results of plain and steel fiber reinforced concrete subjected to complex triaxial stress histories.

키워드

참고문헌

  1. ASCE Isenberg, J.(editor, 1991). "Finite element analysis of reinforced concrete II", New York.
  2. ASCE, Nilson, A.H.(editor, 1982), "Finite element analysis of reinforced concrete", New York, 1982.
  3. Chaboche, J.L. and Rousselier, G. (1983), "On the Plastic and viscoplastic constitutive equations", ASME, J. Pressure Vessel Tech., 105, 153-164. https://doi.org/10.1115/1.3264257
  4. Chaboche, J.L. (1986), "Time-independent constitutive theories for cyclic plasticity", Int. J. Plasticity, 2, 149-188. https://doi.org/10.1016/0749-6419(86)90010-0
  5. Chern, J.C., Yang, H.J. and Chen, H.W. (1992), "Behavior of steel fiber reinforced concrete in multiaxial loading", ACI Material Journal, 89, 32-40.
  6. Fan, J. and Peng, X. (1991), "A physically based constitutive description for nonproportional cyclic plasticity", J. Engng Mat. Tech., 113, 254-262. https://doi.org/10.1115/1.2903400
  7. Fang, L. (1996), "Low-cycle fatigue behavior and damage mechanics of fiber reinforced concrete under bizxial stress states", PhD Dissertation, Columbia University, New York.
  8. Lemaitre, J. (1984), "How to use damage mechanics", Nucl. Engng. Des, 80, 233-245. https://doi.org/10.1016/0029-5493(84)90169-9
  9. Paskova, T. (1994), "Low-cycle fatigue and damage mechanics of concrete with and without fiber reinforcement", PhD Dissertation, Columbia University, New York.
  10. Peng, X., Fan, J. and Zeng, X. (1996), "Analysis for plastic buckling of thin-walled cylinders via nonclassical constitutive theory of plasticity", Int. J. Solids Struct., 33, 4495-4509. https://doi.org/10.1016/0020-7683(95)00285-5
  11. Peng, X., Meyer, C. and Fang, L. (1997), "Thermomechanically consistent damage model for concrete materials", J. Engng. Mech., 123, 60-69. https://doi.org/10.1061/(ASCE)0733-9399(1997)123:1(60)
  12. Peng, X. and Ponter, A.R.S. (1994), "A constitutive law for a class of two-phase materials with experimental verification", Int. J. Solids Struct., 31, 1099-1111. https://doi.org/10.1016/0020-7683(94)90166-X
  13. Scavuzzo, R., et al. (1983), "Stress-strain curves for concrete under multizxial load histories", Report to National Science Foundation, Department of Civil, Environmental, and Architectural Engineering, University of Colorado, Boulder.
  14. Sinha, B.P., et al. (1964), "Stress-strain relations for concrete under cyclic loading", ACI Journal, Proceedings, 61(2), 195-211.
  15. Valanis, K.C. (1980), "Fundamental consequences of new intrinsic time measure plasticity as a limit of the endochronic theory", Arch. Mech., 23, 171-190.
  16. Watanabe, O. and Atluri, S.N. (1986), "Internal time, general internal variable and multi-yield surface theories of plasticity and creep: A unification of concept", Int. J. Plasticity, 2, 37-52. https://doi.org/10.1016/0749-6419(86)90015-X

피인용 문헌

  1. Determination of fracture toughness in concretes containing siliceous fly ash during mode III loading vol.62, pp.1, 2017, https://doi.org/10.12989/sem.2017.62.1.001