Thermally Activated Fracture of Porous Media
  The lifetime of a porous media, submitted to a constant subcritical stress, is studied by means of a numerical model. This model is based on a spring network where the porosity is represented by missing springs. The dynamics is produced adding thermal fluctuations in spring forces. The lifetime predicted by the models are compared to experimental data of delayed fracture of porous media submitted to three-point flexion fracture experiments. 
Alessio Guarino and Sergio Ciliberto
cond-mat.stat-mech cond-mat.mtrl-sci