For the purpose of including reasonable values of tensile strengths in the available failure criterion (for frictional materials with effective cohesion), it may be necessary to include the uniaxial tensile strength in the parameter determination. A simple expression for evaluation of the uniaxial tensile strength on the basis of the uniaxial compressive strength is proposed. Different types of geological materials were included in the study. Also, on the basis of available experimental data on flexural and splitting tensile strengthsof concrete, simple expressions for evaluation of these strengths as a function of uniaxial comprehensive strength are given. THe correlation between the experimental results and analytical predictions are good and provide a simple approach for developing tensile strength models for plain concrete.
Samenvatting