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Magnetic Stimulation for Programmed Shape Morphing: Review of Four-Dimensional Printing, Challenges and

Vera G Kortman^1,2, Ellen de Vries¹, Jovana Jovanova²

¹Department of BioMechanical Engineering, Faculty of 3mE, Delft University of Technology, Delft, the Netherlands.

3D Printing and Additive Manufacturing

|October 3, 2024

Summary

This review explores 4D printing strategies for magnetically stimulated shape morphing structures. It analyzes manufacturing approaches and magnetic particle orientation for advanced smart materials.

Keywords:

3D printing 4D printing additive manufacturing magnetism shape morphing smart materials

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Area of Science:

Materials Science
Additive Manufacturing
Robotics

Background:

Four-dimensional (4D) printing enables smart structures with stimulus-responsive shape morphing.
Magnetic stimulation is a safe, remote, and rapid actuation method for these structures.
Developing magnetically responsive 4D-printed structures is a key area in advanced manufacturing.

Purpose of the Study:

To provide a comprehensive overview of strategies and manufacturing approaches for magnetically stimulated shape morphing 4D-printed structures.
To analyze the influence of magnetic particle orientation on shape-morphing behavior.
To guide readers in selecting appropriate manufacturing methods for specific magnetic actuation effects.

Main Methods:

Extensive literature search on magnetically stimulated shape morphing 4D printing.
Analysis of individual and combined stimulus-responsive structures.
Investigation of magnetic particle orientation (random vs. programmed) in smart composites.

Main Results:

Most research focuses on single-stimulus responsive 4D structures, with emerging multi-stimulus examples.
Magnetic particle orientation significantly impacts the resulting shape-morphing behavior.
Various manufacturing strategies exist, each with unique effects on actuation.

Conclusions:

Understanding manufacturing approaches and particle orientation is crucial for designing effective magnetically actuated 4D-printed structures.
This review serves as a guide for researchers and engineers in the field of 4D printing and smart materials.
Future work may focus on multi-stimulus responsive systems and advanced particle programming techniques.