Size Effect and Stochastic Nonlocal Damage in Quasi-Brittle Materials

摘要: Deterministic nonlocal damage models yield mesh independent finite element calculations. They predict structure size effect which is in accordance with experimental observations on notched specimens made of concrete 3-point bending and 4-point bending. However, these deterministic are unable to volume exhibited by quasi-brittle materials direct tension. We investigate this paper independency a model where disorder intoduced at the representative scale. Numerical simulations unnotched will show that proposed stochastic yields calculations predicts both effects consistent observations.