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21 March 2019 Shape prediction of a composite wing panel under the action of an SMA wire and an MFC bimorph
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Abstract
In this article two numerical approaches for the shape prediction of a composite wing panel under the combined actuation of a Shape memory alloy (SMA) wire and a Macro fiber composite (MFC) bimorph has been developed. The first approach is a Euler-Bernouilli beam theory based linear finite element iterative scheme and the second approach is a Timoshenko beam theory based nonlinear finite element iterative scheme that takes into account the von Karman strains. The force due to the SMA wire is modeled as a follower force. It is shown that both the techniques developed are capable taking into account this non conservative follower force, while accounting for any additional arbitrary loading. The numerical schemes developed in this paper are validated using the existing techniques while elucidating the lacuna in the existing methods.
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Aghna Mukherjee, Shaikh Faruque Ali, and A. Arockiarajan "Shape prediction of a composite wing panel under the action of an SMA wire and an MFC bimorph", Proc. SPIE 10967, Active and Passive Smart Structures and Integrated Systems XIII, 109671T (21 March 2019); https://doi.org/10.1117/12.2514294
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