Thermomechanical Response of SMA Composite Beams with Embedded Nitinol Wires in an Epoxy Matrix

摘要: Nitinol shape memory wires were embedded in epoxy beams to study their thermomechanical behavior the state. Beams made with ten placed below geometric mid-plane. A room temperature cure was used minimize residual stresses acting on wires. The an oven and heated from a well above austenitic finish of photographed through window door at periodic intervals during experiment. photographs analyzed measure beam deflections experiment resulting thermal transformational strains. model developed predictions curvature compared experimental data. results show that agreement between data is dependent, extremely sensitive to, accurate knowledge properties both nitinol phases. Large obtained some evidence transformation front propagation edges center shown.