  This paper is devoted to the construction of a new fast-to-evaluate model for
the prediction of 2D crack paths in concrete-like microstructures. The model
generates piecewise linear cracks paths with segmentation points selected using
a Markov chain model. The Markov chain kernel involves local indicators of
mechanical interest and its parameters are learnt from numerical full-field 2D
simulations of craking using a cohesive-volumetric finite element solver called
XPER. The resulting model exhibits a drastic improvement of CPU time in
comparison to simulations from XPER.
