Ojo, Saheed Olalekan and Paggi, Marco A 3D coupled thermo-visco-elastic shear-lag formulation for the prediction of residual stresses in photovoltaic modules after lamination. Composite Structures, 157. pp. 348-359. ISSN 0263-8223 (2016)
Full text not available from this repository.Abstract
Evaluation of the residual stress distribution arising from lamination of photovoltaic (PV) modules is important to address thermomechanically induced failure of PV modules during service. In view of the fact that PV modules contain several Silicon cells, modelling the thermo-mechanical response of PV laminates during cooling after lamination is computationally challenging. Due to the coupling between the thermal and the mechanical fields, the stress state experienced by each silicon cell in a module varies from one position to another. Here, a novel 3D coupled thermo-visco-elastic shear-lag model is proposed to determine the stress distribution in a PV module after lamination. To enhance the prediction of stress distribution in the laminate, viscoelastic properties of the EVA encapsulant are taken into account by using an asymptotic model which is stable for small and large time steps of strain increments. The results for a simulated mini-module show that residual stresses vary significantly from point to point inside the PV module.
| Item Type: | Article |
|---|---|
| Identification Number: | https://doi.org/10.1016/j.compstruct.2016.08.036 |
| Additional Information: | SCOPUS ID: 2-s2.0-84987625456 |
| Projects: | ERC StG CA2PVM 306622 |
| Funders: | European Research Council |
| Uncontrolled Keywords: | Photovoltaics; Residual stresses; Laminates; 3D shear-lag model; Thermo-visco-elasticity; Polymeric encapsulant |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Research Area: | Computer Science and Applications |
| Depositing User: | Prof Marco Paggi |
| Date Deposited: | 27 Dec 2016 09:05 |
| Last Modified: | 27 Dec 2016 09:05 |
| URI: | http://eprints.imtlucca.it/id/eprint/3610 |
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