Direct Tensile Performance of UHPCC Element Based on Damage Mechanics
Direct uniaxial tension test of ultra high performance cementitious composites I shape specimens have been investigated in this paper. A nonlinear analytical model based on continuum damage mechanics is developed to characterize tensile stress-strain constitutive response of UHPCC. Basic governing equations of damage evolution and material constitutive relation are established considering random damage which conforms to a modified Weibull type distribution proposed in this paper. Calculation suggests that Weibull distribution can describe damage evolution of UHPCC and predict the constitutive relation and damage evolution equation.
J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel
S. M. Han et al., "Direct Tensile Performance of UHPCC Element Based on Damage Mechanics", Key Engineering Materials, Vols. 348-349, pp. 829-832, 2007