eprintid: 2041
rev_number: 8
eprint_status: archive
userid: 56
dir: disk0/00/00/20/41
datestamp: 2013-12-04 14:56:41
lastmod: 2017-03-27 14:48:32
status_changed: 2013-12-04 14:56:41
type: article
metadata_visibility: show
creators_name: Paggi, Marco
creators_name: Corrado, Mauro
creators_name: Rodriguez, Maria Alejandra
creators_id: marco.paggi@imtlucca.it
creators_id: 
creators_id: 
title: A multi-physics and multi-scale numerical approach to microcracking and power-loss in photovoltaic modules
ispublished: pub
subjects: TJ
divisions: CSA
full_text_status: public
keywords: Photovoltaic module; Fracture mechanics; Computational methods; Multi-physics; Multi-scale
abstract: A multi-physics and multi-scale computational approach is proposed in the present work to study the evolution of microcracking in polycrystalline Silicon (Si) solar cells composing photovoltaic (PV) modules. Coupling between the elastic and the electric fields is provided according to an equivalent circuit model for the PV module where the electrically inactive area is determined from the analysis of the microcrack pattern. The structural scale of the {PV} laminate (the macro-model) is coupled to the scale of the polycrystals (the micro-model) using a multiscale nonlinear finite element approach where the macro-scale displacements of the Si cell borders are used as boundary conditions for the micro-model. Intergranular cracking in the Si cell is simulated using a nonlinear fracture mechanics cohesive zone model (CZM). A case-study shows the potentiality of the method, in particular as regards the analysis of the microcrack orientation and distribution, as well as of the effect of cracking on the electric characteristics of the PV module.
date: 2013
date_type: published
publication: Composite Structures
volume: 95
number: 0
publisher: Elsevier
pagerange: 630 - 638
id_number: 10.1016/j.compstruct.2012.08.014
refereed: TRUE
issn: 0263-8223
official_url: http://www.sciencedirect.com/science/article/pii/S0263822312003807
related_url_url: http://arxiv.org/abs/1303.7452v1
citation:   Paggi, Marco and Corrado, Mauro and Rodriguez, Maria Alejandra  A multi-physics and multi-scale numerical approach to microcracking and power-loss in photovoltaic modules.  Composite Structures, 95.  630 - 638.  ISSN 0263-8223      (2013)  
document_url: http://eprints.imtlucca.it/2041/1/1303.7452.pdf