A novel finite element technique for moisture diffusion modeling using ANSYS

Diyaroglu, C. and Madenci, E. and Oterkus, S. and Oterkus, E.; (2018) A novel finite element technique for moisture diffusion modeling using ANSYS. In: Proceedings, IEEE 68th Electronic Components and Technology Conference. IEEE, USA, pp. 227-235. ISBN 9781538649992 (https://doi.org/10.1109/ECTC.2018.00043)

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Abstract

This study presents a novel modeling approach for wetness and moisture concentration in the presence of time dependent saturated moisture concentration by employing the traditional ANSYS thermal and surface effect elements. The accuracy of the present approach is established by comparison with those of the existing ANSYS "diffusion" and "coupled field" elements as well as peridynamic theory. The comparison concerns the desorption process in a fully saturated bar made of two different materials with equal and unequal values of solubility activation energy in the presence of time dependent saturated moisture concentration under uniform and nonuniform temperature conditions. The results from the present approach agree well with those of peridynamics and ANSYS "coupled field" elements if the diffusivity is specified as time dependent. Significant deviation occurs if the diffusivity is specified as temperature dependent. The ANSYS "diffusion" element is applicable only for uniform temperature, and deviation becomes significant especially for unequal values of solubility activation energy.

  • Item type:Book Section
    ID code:65759
    Dates:
    Date
    Event
    9 August 2018
    Published
    12 November 2017
    Accepted
    Notes:© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering
    Depositing user: Pure Administrator
    Date deposited:12 Oct 2018 09:48
    Last modified:25 Apr 2024 00:08
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/65759
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