SMA Hybrid Composites for Dynamic Response Abatement Applications | Zendy

Travis L. Turner | Zendy

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SMA Hybrid Composites for Dynamic Response Abatement Applications

Author(s) -

Travis L. Turner

Publication year - 2005

Publication title -

journal of vibration and acoustics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 82

eISSN - 1528-8927

pISSN - 1048-9002

DOI - 10.1115/1.1888588

Subject(s) - finite element method , materials science , stiffening , actuator , shape memory alloy , vibration control , structural engineering , vibration , smart material , noise (video) , constitutive equation , composite material , computer science , engineering , acoustics , physics , image (mathematics) , artificial intelligence

A recently developed constitutive model and a finite element formulation for predicting the thermomechanical response of SMA hybrid composite (SMAHC) structures is briefly described. Attention is focused on constrained recovery behavior in this study, but the constitutive formulation is also capable of modeling restrained or free recovery. Numerical results are shown for glass/epoxy panel specimens with embedded Nitinol actuators subjected to thermal and acoustic loads. Control of thermal buckling, random response, sonic fatigue, and transmission loss are demonstrated and compared to conventional approaches including addition of conventional composite layers and a constrained layer damping treatment. Embedded SMA actuators are shown to be significantly more effective in dynamic response abatement applications than the conventional approaches and are attractive for combination with other passive and/or active approaches.

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