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Simulated hail impacts on flexible photovoltaic laminates: testing and modelling

Corrado, Mauro and Infuso, Andrea and Paggi, Marco Simulated hail impacts on flexible photovoltaic laminates: testing and modelling. Meccanica, 52. pp. 1425-1439. ISSN 0025-6455 (2017)

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The problem of simulated low-velocity hail impacts on flexible photovoltaic (PV) modules resting on a substrate with variable stiffness is investigated. For this type of PV module it is shown that the prescriptions of the IEC 61215 International Standard for quality control used for rigid (glass-covered) PV modules should be augmented by taking into account their real mounting condition and the stiffness of the substrate in the simulated hail impact tests. Moreover, electroluminescence inspection of the crack pattern should be made in addition to electric power output measurements.An implicit finite element simulation of the contact problem in dynamics is also proposed, with two different degrees of accuracy, to interpret the experimentally observed extension of cracking. Results pinpoint the important role of stress wave propagation and reflection in the case of soft substrates.

Item Type: Article
Identification Number: 10.1007/s11012-016-0483-2
Projects: ERC Starting Grant CA2PVM (GA 306622)
Funders: European Research Council
Uncontrolled Keywords: Photovoltaic laminates; Low-velocity impacts; Experimental testing; Dynamic contact problem
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Research Area: Computer Science and Applications
Depositing User: Prof Marco Paggi
Date Deposited: 26 Sep 2017 07:48
Last Modified: 26 Sep 2017 08:01
URI: http://eprints.imtlucca.it/id/eprint/3795

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