Magneto-Mechanical Coupling in Magneto-Active Elastomers.

Area of Science:

• Materials Science
• Mechanics of Materials
• Soft Matter Physics

Background:

• Magneto-active elastomers (MAEs) are smart materials exhibiting magneto-mechanical coupling.
• Understanding the microstructural behavior of MAEs is crucial for their application.
• Existing modeling approaches vary in assumptions and resolution.

Purpose of the Study:

• To investigate magneto-mechanical coupling in MAEs using two distinct modeling strategies.
• To compare the interchangeability and predictive capabilities of micro-continuum and particle-interaction models.
• To provide insights into a hybrid multiscale framework for MAEs.

Main Methods:

• Modeling magneto-mechanical coupling via a micro-continuum approach.
• Modeling magneto-mechanical coupling via a particle-interaction approach.
• Systematic comparison of model predictions for magneto-deformation of helical structures.

Main Results:

• Both micro-continuum and particle-interaction models were successfully applied to MAEs.
• Representative examples illustrated the capabilities of each modeling strategy.
• Remarkable agreement was observed between the two modeling approaches in predicting magneto-deformation.

Conclusions:

• The study validates the interchangeability of micro-continuum and particle-interaction models for MAEs.
• The findings contribute to a better understanding of interactions in MAEs with chain-like microstructures.
• This work supports the development of hybrid multiscale frameworks for advanced MAE simulations.