Abstract
The behavior of acoustic stress waves propagated through Ferromagnetic Shape Memory Alloy (FSMA) is formulated theoretically for analyzing their energy-absorbing capability and is validated with experimental measurements. In the experiment, piezostack actuator transfers the series of asymmetric acoustic pulses through Ni48Mn32Ga20 single crystal to induce twin boundary motion. Thereby suppressing the vibration along the sample and are observed using a PZT sensor. Based on these experimental conditions, one dimensional wave function is theoretically derived to numerically compute the damping behavior of Ni48Mn32Ga20 sample. These analyses can be utilized to design a highly efficient and cost-effective damper using an FSMA sample.
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