Thermal post-buckling analysis of shape memory alloy hybrid composite shell panels

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The thermal post-buckling responses of shape memory alloy hybrid composite (SMAHC) shell panels are investigated using a finite element method formulated on the basis of the layerwise theory. The von Karman nonlinear displacement-strain relationships are applied to consider large deflections due to thermal loads. The cylindrical arc-length method is used to take account of the snapping phenomenon which is an unstable behavior observed in the shell panels. A nonlinear finite element procedure based on Brinson's model is developed to investigate the behaviors of shape memory alloy (SMA) wire. The results of numerical analysis show that the recovery stresses of SMA wires can enhance the stiffness of structure and the SMAHC shell panel exhibits superior behaviors of thermal post-buckling compared to the conventional composite panel. It is also shown that embedding SMA wires in a composite structure can prevent the unstable post-buckling behavior.
Publisher
IOP PUBLISHING LTD
Issue Date
2004-12
Language
English
Article Type
Article
Keywords

VIBRATION CHARACTERISTICS; FINITE-ELEMENT; BEHAVIOR; PLATES; ACTUATORS

Citation

SMART MATERIALS & STRUCTURES, v.13, no.6, pp.1337 - 1344

ISSN
0964-1726
DOI
10.1088/0964-1726/13/6/006
URI
http://hdl.handle.net/10203/6608
Appears in Collection
ME-Journal Papers(저널논문)AE-Journal Papers(저널논문)
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