Abstract
The strain softening behaviors of concrete material under uniaxial tensile rapid loading has been left unsolved experimentally. It may be the reason that it is difficult to measure the post-peak behaviors of plain concrete since the fracture of the test specimen will happen suddenly and instantaneously under rapid loading. Thus, the new testing method for measuring dynamic tensile softening behaviors of concrete is proposed in this study. Also, this study is to investigate the strain softening behaviors of concrete material in tension under rapid loading. The loading-rate is chosen as test parameter. From tests results, the effect of the loading-rate on the tensile softening behaviors of concrete materials is examined. Furthermore, based on the fictitious crack model, the constitutive model for the uniaxial tensile rapid loading is presented.
