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Thermal wrinkling of thin membranes using a Fourier-related double scale approach

Abstract : The thermal wrinkling behavior of thin membranes is investigated in this paper. Wrinkles often occur at multiple length scales where induced compressive stresses are located during thermal loading. In the present study, the method of double scale Fourier series is used to deduce the macroscopic membrane wrinkling equations. The obtained equations account for the global and local wrinkling modes. Numerical examples are conducted to assess the validity of the approach developed. The present membrane's model needs only few degrees of freedom to recover more accurately the post-buckling equilibrium curves and the wrinkling shapes. Different parameters such as membrane's aspect ratio, wave number, and pre-stressed membranes are discussed from a numerical point of view and the properties of the wrinkles (critical load, wavelength, size, and location) are presented.
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https://hal.univ-lorraine.fr/hal-01514967
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Submitted on : Wednesday, April 26, 2017 - 6:27:42 PM
Last modification on : Friday, July 17, 2020 - 2:57:59 PM

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Kodjo Attipou, Heng Hu, Foudil Mohri, Michel Potier-Ferry, Salim Belouettar. Thermal wrinkling of thin membranes using a Fourier-related double scale approach. Thin-Walled Structures, Elsevier, 2015, 94, pp.532-544. ⟨10.1016/j.tws.2015.04.034⟩. ⟨hal-01514967⟩

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