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Content available A stereological ubiquitiformal softening model for concrete
Ou Zhuo-Cheng, Li Guan-Ying, Duan Zhuo-Ping, Huang Feng-Lei
Journal of Theoretical and Applied Mechanics
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2019
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Vol. 57 nr 1
27--35
EN
A stereological ubiquitiformal softening model for describing the softening behavior of concrete under quasi-static uniaxial tensile loadings is presented in this paper. In the model, both the damage evaluation process of fracture cross-sections and their distribution along the specimens axis are taken into account. The numerical results of a certain kind of full grade concrete made of crushed coarse aggregate are found to be in good agreement with the experimental data. Moreover, an experiental relation between the lower bound to the scale invariance of concrete and its tensile strength is also obtained by data fitting of the experimental data, which provides an effective approach to determine the lower bound to scale invariance of concrete.
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