Abstract
In this study, by referring to the existing test data and numerical simulation parameters of Bos, using the compression constitutive relationship of concrete proposed by Thorenfeldt and the tensile constitutive model proposed by Petersson, the numerical simulation of the flexural toughness of steel fiber notched beam by pouring and 3D printing is carried out by using the finite element software ABAQUS, and the load deflection curve is obtained, which is compared with the test curve of BOS to verify The rationality of the research model. Based on the verified model parameters, ABAQUS is used to simulate the four point bending test of steel fiber reinforced 3D printing concrete and plain concrete, focusing on the influence of steel fiber content and notch depth on the load deflection curve.
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