Abstract
In this study, the numerical model of a shape memory alloy hybrid composite (SMAHC)plate was constructed. The model was based on the effective coefficient of thermalexpansion (ECTE) model of the shape memory alloy (SMA) material. The embedded SMAwires were modeled as an integrated composite layer in conjunction with the hostcomposite lamina. The tailored design feature of laminated composite plates allows theflexibility of orienting the SMAHC layer along different directions. The response of theSMAHC plates with and without a central cutout, having certain geometric imperfections,subjected to an initial in-plane compressive loading and a subsequent elevatedthermal load, were investigated numerically and experimentally. It was establishedthat the positive attribute of the SMA material could be used to successfullysuppress the post-buckling deflection of the SMAHC plate under an elevatedtemperature, when the SMA wires were properly oriented. The variation of stressconcentration around the cutout of the SMAHC plate was also investigated. Itwas found from this study that the orientation of SMA wires had a significantinfluence on the suppression of the lateral deflection. The extent of such a positiveattribute was found to be influenced by the boundary condition of the SMAHCplate.
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