Print Email Facebook Twitter Analysis of thermal strains and stresses in heated fibre metal laminates Title Analysis of thermal strains and stresses in heated fibre metal laminates Author Anisimov, A. (TU Delft Structural Integrity & Composites) Muller, B. (TU Delft Structural Integrity & Composites) Sinke, J. (TU Delft Structural Integrity & Composites) Groves, R.M. (TU Delft Structural Integrity & Composites) Date 2018 Abstract Current trends in aircraft design are to increase the economic efficiency by integrating different features in multifunctional materials. One strategy is to embed resistance heater elements between glass-fibre epoxy layers in (heated) fibre metal laminates and to use them as anti or de-icing devices in leading edges of wings. Heated glass fibre reinforced aluminium (GLARE) is an example of such a multifunctional material where heating functionality was added to the (certified) structural feature of GLARE. As heated fibre metal laminates are an innovative and rather new material, the possible (local) effects of embedded heating on the stress–strain state have not yet been investigated. This research couples experimental characterisation of heated GLARE surface behaviour and numerical modelling analysis to investigate the surface and the through-the-thickness strain-stress state and temperature distributions due to the embedded heating. For the experimental part, the surface strains and the temperatures of a developed specimen were measured in a slow heating regime (temperature increase from 22.7 to 39.4 °C within 120 s) using, respectively, a developed shearography instrument and thermocouples with an infrared camera. Then a numerical model of heated GLARE was developed and verified with experimental results. Further, the numerical model was used to predict strains, stresses, and temperatures during a temperature increase similar to that used for de-icing in a real operation (temperature increase from −25 to 86.7 °C within 4.8 s). Subject fibre metal laminatefinite element methodheated GLAREshearographystrain measuring To reference this document use: http://resolver.tudelft.nl/uuid:6e16a31b-4cc4-4a3e-8e62-0ec808730330 DOI https://doi.org/10.1111/str.12260 Embargo date 2021-12-22 ISSN 0039-2103 Source Strain: an international journal for experimental mechanics, 54 (2) Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2018 A. Anisimov, B. Muller, J. Sinke, R.M. Groves Files PDF str.12260.pdf 1.99 MB Close viewer /islandora/object/uuid:6e16a31b-4cc4-4a3e-8e62-0ec808730330/datastream/OBJ/view