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成功地测出了钢纤维膨胀混凝土管状试件轴拉应力 -应变全过程曲线 ,并应用微裂缝开展理论 ,对全过程曲线作了宏观过程和微观机理分析 .在试验基础上 ,对钢纤维膨胀混凝土管状试件受拉应力 -应变全曲线进行了数值模拟 ,给出了与试验结果符合较好的模拟方程
The whole process curve of axial tensile stress-strain of tubular specimens of steel fiber reinforced expansive concrete was successfully measured, and macroscopic process and microscopic mechanism analysis of the whole process curves were carried out by using the theory of microcracks.Based on the experiments, Concrete tubular specimens were subjected to numerical simulation of tensile stress-strain curves, and the simulation equations in good agreement with the experimental results