Journal
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
Volume 27, Issue 19, Pages 1673-1686Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15376494.2018.1524950
Keywords
SMA reinforced thick composite beam; nonuniform temperature; layerwise solution; thermal buckling and post buckling; von-Karman formulation
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Thermal buckling and post-buckling behavior of composite beam reinforced with shape memory alloy (SMA) wires under nonuniform temperature distribution is explored. Thermo-mechanical behavior of SMA wires is formulated by using the one-dimensional Brinson SMA model. Considering von Karman strain-displacement relation, corresponding nonlinear governing equations are obtained and solved analytically. Heat conduction equation is employed and through-the-thickness temperature distribution is obtained by discretization scheme of layerwise method. Influence of SMA-wire positioning across the thickness, temperature distribution, SMA wire pre-straining level and volume fraction of SMAs upon the thermal buckling and post buckling of reinforced beam are examined and discussed in detail.
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