In general, photovoltaic composite structures are three-layer laminates with a thin soft core layer. Due to the high contrast between the mechanical properties of skin and core layers, such structures have been studied by different theories. Finite-element models, continuum-based theories, and two-dimensional plate/shell theories are used in the analysis of laminated structures. The present study deals with the modeling and computational simulation of photovoltaic modules in the context of global structural mechanics. The focus is on the implementation of different elements in both two- and three-dimensional approaches to find the most efficient one for analyzing photovoltaic composite structures.
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Acknowledgement
This research was supported financially by the European Structural and Investment Funds (ESF) under the program ‘Sachen-Anhalt WISSENSCHAFT Internationalisierung’ (project no. ZS/2016/08/80646) in context of the Inretnational Graduatr School at Otto von Guericke University (OVGU) MEMoRIAL and by the German Research Foundation (DFG) within the framework of the research training group 1554 ‘Micro-Macro-Interactions of Structured Media and Particle Systems’ (RTG 1554). This support is highly acknowledged.
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Russian translation published in Mekhanika Kompozitnykh Materialov, Vol. 54, No. 4, pp. 609-630, July-August, 2018.
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Appendix
During the convergence study, the mesh density was varied by changing element edge length. As can be seen in following tables, the aspect ratio of 2D elements was kept constant, at AR = 1. In the 3D elements, the aspect ratio was changed, but the number of elements across the plate thickness was kept constant for three different models.
The number of elements in the plate (NE) and across its thickness (NE (X3)), the total number of degrees of freedom (NDoF), and the total number of integration points are indicated in the tables for the different elements used in this work.
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Haghi, M., Aßmus, M., Naumenko, K. et al. Mechanical Models and Finite-Element Approaches for the Structural Analysis of Photovoltaic Composite Structures: a Comparative Study. Mech Compos Mater 54, 415–430 (2018). https://doi.org/10.1007/s11029-018-9752-6
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DOI: https://doi.org/10.1007/s11029-018-9752-6