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Vibration Analysis of Shape Memory Alloy Enhanced Multi-Layered Composite Beams with Asymmetric Material Behavior
Kosar Samadi-Aghdam1, Pouya Fahimi1, Hamid Shahsavari2
1School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran 14155-6619, Iran.
Materials (Basel, Switzerland)
|March 13, 2025
Summary
Shape memory alloy (SMA) composite beams show reduced vibration amplitudes due to hysteresis. This study
Area of Science:
- Composite Materials Engineering
- Mechanical Vibrations
- Smart Materials
Background:
- Shape Memory Alloys (SMAs) offer unique properties for vibration control.
- Multi-layer composite beams are increasingly used in engineering structures.
- Understanding the dynamic behavior of SMA composite beams is crucial for design.
Purpose of the Study:
- To develop a finite element solution for analyzing multi-layer SMA composite beam vibrations.
- To investigate the dynamic characteristics of bi-layer and tri-layer SMA beams.
- To evaluate the effectiveness of SMA properties in vibration mitigation.
Main Methods:
- Finite element analysis (FEA) using Euler-Bernoulli beam theory.
- Incorporation of tension-compression asymmetry based on Poorasadion's model.
- Numerical integration via the Newmark method and Newton-Raphson technique.
- Validation against ABAQUS/Standard simulation results.
Main Results:
- Accurate prediction of vibration response for multi-layer SMA composite beams.
- Demonstration of reduced early-stage vibration amplitudes due to SMA hysteresis.
- Analysis of deflection-time, stress-strain, and velocity-deflection profiles.
- Good agreement between the developed model and commercial FEA software.
Conclusions:
- The developed finite element model accurately simulates SMA composite beam dynamics.
- SMA's inherent hysteresis and energy dissipation are effective for vibration control.
- SMA composite beams show significant potential for enhancing dynamic performance in engineering applications.
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