Factors Influencing Analytical Continuum Simulation of Three-Point Bend Test of a Concrete Notched Beam

Abstract eng:
Accurate determination of the response of concrete in tension is required for analysis of massive concrete structures designed based on philosophy of un-cracked concrete sections. The three-point bend test of a notched plain concrete beam is a standard test for determining concrete fracture energy and concrete tensile response. Data from these tests are used routinely to evaluate the accuracy with which finite element software and concrete constitutive models simulate response. Performing these analyses requires the analyst to make a number of modeling decisions with respect to the element type, size, and integration rules as well as the material model parameters to be used. In this study, the impact of these decisions on predicted response is investigated and the uncertainty associated with modeling decisions is demonstrated.

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