Tension Softening Curves Described by Algebraic Formulas and Artificial Neural Networks.

Knowledge of the tension softening process of concrete is essential to understand fracture mechanisms, to analyze fracture behaviour and to evaluate the properties of concrete. Many different tests on uniaxial tension with elimination of secondary flexure have been performed in Tohoku Institute of Technology. Based on the results, some new formulas were proposed and a suitable artificial neural network was introduced to describe tension softening curves. [ABSTRACT FROM AUTHOR]