@inproceedings{809617a6d9244276834938d9dd233edf,
title = "Fracturing in concrete via lattice-particle model",
abstract = "Numerical simulation is used to explore the behavior of concrete beams of different sizes and different notch lengths, loaded in three-point bending. The entire range of notch depth is studied. One limit case is type 1 fracture, which occurs when the notch depth is zero and the crack initiates from a smooth surface (this is the case of the modulus of rupture test). Another limit is type 2 fracture, which occurs for deep enough notches. Both cases exhibit very different size effects. The fracture is simulated numerically with a robust mesolevel lattice-particle model. The results shed light on the transitional behavior in which the notch depth is non-zero but not deep enough for developing the the type 2 size effect dominated by energy release from the structure. In agreement with experimental observations and theoretical predictions, the numerical results show evidence of a decreasing macroscopic fracture energy as the ligament gets very short.",
keywords = "Concrete, Fracture, Lattice-particle model, Notch variability, Size effect",
author = "Jan Eli{\'a}{\v S} and Ba{\v z}ant, {Zden{\v e}k P.}",
year = "2011",
language = "English (US)",
isbn = "9788489925670",
series = "Particle-Based Methods II - Fundamentals and Applications",
pages = "306--317",
booktitle = "Particle-Based Methods II - Fundamentals and Applications",
note = "2nd International Conference on Particle-Based Methods, PARTICLES 2011 ; Conference date: 26-10-2011 Through 28-10-2011",
}