Design of Arbitrary Magnetic Patterns on Magnetic Polymer Composite Objects: A Finite Element Modelling Tool

Area of Science:

• Materials Science
• Engineering
• Physics

Background:

• Magnetic sensor systems rely on magnetic field generators.
• Permanent magnets are common but difficult to shape.
• Magnetic polymer composites (MPCs) offer a flexible alternative.

Purpose of the Study:

• To develop a finite element model for designing complex magnetization patterns in MPCs.
• To enable custom field generators for magnetic sensing applications.

Main Methods:

• Finite element modeling in COMSOL Multiphysics.
• Incorporation of part geometry and material magnetic properties.
• Consideration of magnet properties and surrounding elements during magnetization.

Main Results:

• The model accurately predicts magnetization patterns in MPCs at various temperatures.
• It allows for the design of complex shapes and magnetization for polymer-based field generators.

Conclusions:

• The developed model facilitates the creation of novel polymeric parts for magnetic sensing.
• This approach provides a versatile and cost-effective solution compared to permanent magnets.