The most popular expression that considers the size effect showed in concrete structures is the size effect law of Bazant. This law depends on two coefficients Gf and cf. For the experimental determination of these coefficients is necessary obtaining the ultimate loads, in three points bending tests, of notched beams with different sizes. In this work, a method to determine the coefficients about the results on identical beams varying the deep of the notch, is presented. The necessary values of loads are obtained by a numerical analysis with FEM that considers non linear behaviour of the concrete material. Next the proposed method is applied to experimental results of concrete specimens with different relative notch depth.
Cite This Article
Cifuentes, H., Medina, F. (2008). Determination of the Size Effect Law with One-Size Concrete Specimens of Different Notch Depths. The International Conference on Computational & Experimental Engineering and Sciences, 7(4), 197–202.
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