Experimental investigations on the mechanical properties and buckling behavior of the filament wound composite shells embedded with shape memory alloy wires

摘要

In this study mechanical properties and buckling behavior of laminated cylindrical composite shells embedded with shape memory alloys (SMAs) were investigated. Samples were fabricated by filament winding process. Stacking sequences were +/- 55 degrees/SMA/+/- 55 degrees. SMAs with shape memory effect used in the form of wire were placed between plies 2 and 3. Moreover, the effect of zero and 5% tensile prestrain and number of SMA wires were studied by embedding zero, four, and six wires in the composite. The results showed that the critical buckling load increased by using four SMA wires and decreased due to increasing the number of SMAs up to six.