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Study on the Characteristics of Cement-Based Magnetoelectric Composites Using COMSOL
Weixuan Huang1, Cuijuan Pang1,2, Jianyu Xu1,2
1College of Ocean Engineering and Energy, Guangdong Ocean University, Zhanjiang 524090, China.
Materials (Basel, Switzerland)
|November 13, 2025
Summary
This study models cement-based magnetoelectric composites, revealing how magnetic fields and layer thickness impact performance. Optimal design involves a thin piezoelectric layer and thick magnetostrictive layer for enhanced magnetoelectric coupling.
Area of Science:
- Materials Science
- Multiphysics Modeling
- Composite Materials
Background:
- Magnetoelectric composites offer tunable properties for advanced applications.
- Understanding multiphysics coupling is essential for optimizing composite performance.
- Cement-based composites present unique challenges and opportunities in materials design.
Purpose of the Study:
- To develop and validate a multiphysics-coupled model for 2-2 cement-based magnetoelectric composites.
- To systematically investigate the magnetoelectric-coupling behavior and influencing factors.
- To quantify the effects of magnetic field, frequency, and layer-thickness ratio on magnetoelectric properties.
Main Methods:
- Establishment of a multiphysics-coupled 2-2 cement-based magnetoelectric composite model in COMSOL 6.2.
- Simulation and analysis of internal stress-strain distribution and voltage evolution.
- Investigation of dynamic response using magnetic flux density, displacement, and voltage profiles.
Main Results:
- The model accurately reproduces stress-strain and voltage evolution, highlighting boundary effects on layer responses.
- Bias magnetic field significantly influences output voltage, with linear increase followed by saturation.
- Resonance characteristics are observed under alternating magnetic fields, dependent on structural dimensions and bias field.
- Layer thickness critically affects magnetoelectric coupling, with optimal performance achieved by a thin piezoelectric and thick magnetostrictive layer.
- Anisotropy in magnetoelectric coefficients is identified due to directional misalignment.
Conclusions:
- The developed model provides a robust theoretical framework for analyzing cement-based magnetoelectric composites.
- Optimization strategies focusing on layer thickness are crucial for maximizing magnetoelectric performance.
- Understanding the anisotropic nature of magnetoelectric coupling is key for designing high-performance materials.
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