@article{eprints2302, journal = {Journal of the European Ceramic Society }, publisher = {Elsevier}, author = {Andrea Infuso and Mauro Corrado and Marco Paggi}, title = {Image analysis of polycrystalline solar cells and modeling of intergranular and transgranular cracking}, year = {2014}, volume = {34}, pages = {2713--2722}, number = {11}, url = {http://eprints.imtlucca.it/2302/}, abstract = {An innovative image analysis technique is proposed to process real solar cell pictures, identify grains and grain boundaries in polycrystalline Silicon, and finally generate finite element meshes. Using a modified intrinsic cohesive zone model approach to avoid mesh dependency, nonlinear finite element simulations show how grain boundaries and Silicon bulk properties influence the crack pattern. Numerical results demonstrate a prevalence of transgranular over intergranular cracking for similar interface fracture properties of grains and grain boundaries, in general agreement with the experimental observation.} }