eprintid: 2302 rev_number: 7 eprint_status: archive userid: 56 dir: disk0/00/00/23/02 datestamp: 2014-10-09 09:27:38 lastmod: 2014-10-09 09:32:44 status_changed: 2014-10-09 09:27:38 type: article metadata_visibility: show creators_name: Infuso, Andrea creators_name: Corrado, Mauro creators_name: Paggi, Marco creators_id: andrea.infuso@polito.it creators_id: mauro.corrado@polito.it creators_id: marco.paggi@imtlucca.it title: Image analysis of polycrystalline solar cells and modeling of intergranular and transgranular cracking ispublished: pub subjects: TA divisions: CSA full_text_status: public 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. date: 2014 date_type: published publication: Journal of the European Ceramic Society volume: 34 number: 11 publisher: Elsevier pagerange: 2713-2722 id_number: 10.1016/j.jeurceramsoc.2013.12.051 refereed: TRUE issn: 0955-2219 official_url: http://dx.doi.org/10.1016/j.jeurceramsoc.2013.12.051 related_url_url: http://arxiv.org/abs/1410.0256 citation: Infuso, Andrea and Corrado, Mauro and Paggi, Marco Image analysis of polycrystalline solar cells and modeling of intergranular and transgranular cracking. Journal of the European Ceramic Society , 34 (11). pp. 2713-2722. ISSN 0955-2219 (2014) document_url: http://eprints.imtlucca.it/2302/1/1410.0256.pdf