Fracture Analysis of High Strength Concrete Members
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Volume 13, Issue 3
Abstract
A nonlinear model for the fracture analysis of high strength concrete members is developed through the interactive use of experimental data and finite-element analysis. The experimentally obtained tensile softening relationship is incorporated into a nonlinear ABAQUS finite-element program. Finite-element analysis is performed to evaluate flexural strength, process zone size, size effect, and the effect of load line deflection measurements on concrete fracture energy. The finite-element model is simple and shown to be successful in predicting beam test results. Finally, the finite-element model is used to compare the size effect model and the two-parameter fracture model. The fracture energies obtained by these alternatives are compared and discussed.
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Received: Apr 9, 1999
Published online: Jun 1, 2001
Published in print: Jun 2001
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