eprintid: 3614
rev_number: 5
eprint_status: archive
userid: 56
dir: disk0/00/00/36/14
datestamp: 2016-12-27 09:12:31
lastmod: 2016-12-27 09:12:31
status_changed: 2016-12-27 09:12:31
type: article
metadata_visibility: show
creators_name: Paggi, Marco
creators_name: Corrado, Mauro
creators_name: Berardone, Irene
creators_id: marco.paggi@imtlucca.it
creators_id: mauro.corrado@polito.it
creators_id: irene.berardone@polito.it
title: A global/local approach for the prediction of the electric response of cracked solar cells in photovoltaic modules under the action of mechanical loads
ispublished: pub
subjects: TA
divisions: CSA
full_text_status: none
abstract: A numerical approach based on the finite element method to assess the impact of cracks in Silicon solar cells on the electric response of photovoltaic modules is proposed. A global coarse-scale finite element model of the composite laminate is used for carrying out the structural analysis. The computed displacements at the edges of each solar cell are passed via a projection scheme as boundary conditions to a 3D local fine-scale finite element model of the cells which accounts for cohesive cracks. The evaluated crack opening displacements along the crack faces are finally used as input to an electric model characterizing the grid line/solar cell ensemble. The identification of the relation between the localized electric resistance due to cracks and the crack opening, to be used as a constitutive model of cracks, is finally discussed in reference to experimental tests performed in the laboratory.
date: 2016-12-01
date_type: published
publication: Engineering Fracture Mechanics
volume: 168B
publisher: Elsevier
pagerange: 40-57
id_number: 10.1016/j.engfracmech.2016.01.018
refereed: TRUE
issn: 0013-7944
related_url_url: http://dx.doi.org/10.1016/j.engfracmech.2016.01.018
related_url_type: pub
funders: European Research Council
projects: ERC StG CA2PVM 306622
citation:   Paggi, Marco and Corrado, Mauro and Berardone, Irene  A global/local approach for the prediction of the electric response of cracked solar cells in photovoltaic modules under the action of mechanical loads.  Engineering Fracture Mechanics, 168B.  pp. 40-57.  ISSN 0013-7944      (2016)