MODELING AND ANALYSIS OF SHAPE MEMORY ALLOY LAMINATED COMPOSITE PLATES

Document Type : Original Article

Authors

1 Egyptian Armed Forces.

2 Department of Aerospace Engineering, Cairo University, Cairo, Egypt.

Abstract

ABSTRACT
In the present work, laminated composite plates with surface bonded shape memory
alloy sheets are modeled and analyzed based on the modified higher-order shear
deformation theory. The energy balance equations in conjunction with Brinson’s SMA
constitutive model are used to formulate the heat transfer governing equations. The
static responses as well as dynamic characteristics of the plates are obtained using
Ritz solution technique. The plates are subjected to mechanical loads with two types
of boundary conditions, simply-supported and cantilevered. A Mathematica code is
developed to analyze different plate problems. The time response of the shape
memory alloy laminated composite plate is studied. The obtained results are
compared to the available studies solved by different theories. Parametric studies are
conducted to demonstrate the effect of thickness ratio, aspect ratio, material
properties, thermal expansion coefficient, and thickness of shape memory alloy sheet
on the transverse deflections, natural frequencies, and response time.

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