David Garoz Gómez

Modeling of self-healing in concrete and polymeric materials

We present a modeling methodology to assess and improve the encapsulation-based self-healing strategies that are currently being applied in polymeric and cementitious-based materials. We combine numerical techniques based on the eXtended Finite Element Method, Cohesive Surface techniques and Computational Fluid Dynamics. As an example, we show some cases that illustrate how numerical and experimental results can be properly correlated, as well as the important role of the collaboration between the groups involved.

Modelling self-healing: a solid gear in a collaborative multidisciplinary framework

Digital Image Correlation (DIC) Crack propagation in TDCB for self-healing polymers Mechanical characterization of polymer with microcapsules SEPOCOM SECEMIN • New set-up based on 4 points bending test to improve the interface measurements. • Crack propagation simulations. • Model with XFEM and cohesive surfaces. • Validate models with the experiments. • 3D fluid dynamic model. • New specific set-up to observe the leakage with micro-CT scan. • Experiments and simulations are in good agreement.