Review article

The paper considers the data for calculating normal stresses in a standard beam sample at different ratios of the height of the samples to the span, taken as the calculated tensile characteristics of asphalt concrete. Calculations were performed using the finite element method for models under plane stress conditions. It is shown that the values of edge normal stresses obtained on the basis of the formula of resistance of materials are overestimated, which results in overstating the tensile strength characteristic of the material. There has been established dependence of the error of the standard formula on the relative height of the sample, and a formula for calculating the correction factor has been obtained.