Figure 9. FRF of full-span (a) and half-span (b) samples over 20-2000 Hz range 110°C (black) and 135° for heating cycle

From

Active Stiffness Method for High Cycle Fatigue Mitigation using Topical Thin Foil Shape Memory Alloy

Nicholas G. Garafolo, Rachel Collard

Journal of Mechanical Design and Vibration. 2017, 5(1), 11-20 doi:10.12691/jmdv-5-1-2