Nonlocal Micro damage Model for Concrete Under Uniaxial Tension

Abstract:

Based on nonlocal theory and stochastic damage mechanics, a nonlocal micro damage model is developed. By introducing the residual stress factor, the plastic slip effect on damage is reflected. Avoidance of spring layer sensitivity can be achieved with nonlocal proportion. A two scale damage model provides knowledge about strain development, damage evolution and elaborate stress and strain relationship. The non local proportion based analysis leads to stable and reasonable results, which agree well with experimental data.