The active buckling control of laminated composite beams with embedded shape memory alloy wires

Exact solution for nonlinear thermal stability of hybrid laminated composite Timoshenko beams reinforced with SMA fibers

“…Choi et al [4] performed an experimental study on the buckling resistance of laminated composite beams with embedded shape memory alloy fibers. The eccentrically embedded fibers along the axial direction are considered.…”

“…Motivated by experimentally observed results of Chio et al [4,5], Thompson and Loughlan [9] and Loughlan et al [10] or the simulation-based conclusion of Lee and his co-authors [6,7,8] many investigations have been conducted to study the mechanism and the influence of SMA actuators on postponing the bifurcation points, limit points, and enhancing the post-critical states of the structures embedded with SMA wires. Ostachowicz et al [11,12] investigated the linear problems of free vibration, thermal buckling, and flutter in delaminated composite plate embedded with SMA fibers using the finite element method.…”

Uncertainty in Loading and Control of an Active Column Critical to Buckling

“…In comparison to other works, e.g. [10], no predeflected column is stabilised, but the straight active column system reacts in real-time due to deflections caused by the disturbance force which is applied manually.…”

“…In other works, concepts are presented applying bending moments through embedded shape memory alloys (SMA) in a predeflected composite column [10] and experimentally validated with an increase of the buckling load of 11%. Comparing to piezoelectric actuators, SMA may apply large deflections at the expense of applicable forces and operating frequency.…”

“…Comparing to piezoelectric actuators, SMA may apply large deflections at the expense of applicable forces and operating frequency. Therefore, their field of application is limited for one single stabilisation or static stabilisation of predeflected structures, as shown in [10].…”