Damage-Based Computational Model for Concrete

摘要

The development of a complete incremental theory of damage requires the integration of components that include stress-strain relationships, thermodynamic laws governing damage in terms of strain energy release rate vectors and the damage evolution laws. In this paper, a new damage model is proposed by assuming an innovative functional form for the damage modulus which allows for a better calibration of damage evolution and ultimately an improved prediction for the overall behaviour of concrete. The predicted results including strain softening correlate well with the available experimental data. The simulative capability of the model to capture the damage evolution response of concrete is well reflected.