Mathematical modelling of thermo-mechanical stresses arising in rectangular supports of thermoelectric modules

Mathematical modelling of thermo-mechanical stresses arising in rectangular supports of thermoelectric modules

Автор: Sattar Sh.

Журнал: Вестник Российского нового университета. Серия: Сложные системы: модели, анализ и управление @vestnik-rosnou-complex-systems-models-analysis-management

Рубрика: Математическое моделирование

Статья в выпуске: 1, 2021 года.

Бесплатный доступ

Traditionally available unsegmented thermoelectric modules are simple to operate but their applications are limited. Whereas, segmented thermoelectric modules have got significant amount of advantage over unsegmented thermoelectric modules, materially and performance vise, but structural reliability is still unresolved challenge. Thermoelectrical module encounters high stresses due to increase in operating temperature and difference in coefficient of thermal expansion. Consequently, these stresses create deformation and cracks in thermoelectric legs, especially at higher temperature. In this paper a comprehensive analytical model for Thermoelectric modules is discussed. The model can predict thermally induced and shearing stresses in Thermoelectric module. The contemplation of geometrical shape for thermoelectrical module is limited to rectangular and beam-like design, for unsegmented and segmented modules. The analytical model was compiled in MATLAB and Python and results are discussed in detail.

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Thermoelectric, thermomechanical stresses, stress-strain relationship, shear stress

Короткий адрес: https://sciup.org/148321622

IDR: 148321622   |   DOI: 10.25586/RNU.V9187.21.01.P.023

Список литературы Mathematical modelling of thermo-mechanical stresses arising in rectangular supports of thermoelectric modules

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