000			01878aab a2200241 4500
008			240712b20072007|||qr||| |||| 00| 0 eng d
022			_a1056-7895
100			_aA. Ouaar _9882684
100			_aI. Doghri _9882685
100			_aJ.-F. Thimus _9882686
100			_aL. Delannay _9882687
245			_aMicromechanics of the Deformation and Damage of Steel Fiber-reinforced Concrete
300			_a227-260 p.
520			_aThis article presents a study of steel fiber-reinforced concrete (SFRC). In its first part, a four-point bending test performed on both plain concrete and SFRC is investigated. The collected nonlinear load—deflection curves are transformed into stress—strain curves with the help of an incremental method, which the authors developed in the nonlinear regime. In the second part of this article, the authors present a micromechanical approach based on Mori—Tanaka/ Voigt mean-field homogenization schemes in order to model the effective nonlinear behavior of the three-phase brittle composite materials. The first phase (concrete matrix) is assumed to obey Ju's brittle damage model. The second phase (fibers) is modeled with classical J 2 plasticity, while the third phase represents cavities. Numerical algorithms enable the simulation of SFRC within reasonable CPU time and memory requirements. The homogenization module is interfaced to the finite element package ABAQUS. A two-scale simulation of the bending test is validated against the experimental results.
650			_aMicromechanics _9102923
650			_aHomogenization _9170634
650			_aDamage
650			_aExperiments _9170752
650			_aSteel Fiber-Reinforced Concrete _9170225
773	0		_dLondon, U.K. : Sage Publications _x10567895 _tInternational Journal of Damage Mechanics
856			_uhttps://doi.org/10.1177/1056789506064946
942			_2ddc _n0 _cART _o14993 _pMr. Muhammad Rafique Al Haj Rajab Ali (Late)
999			_c815337 _d815337