Fused Deposition Modelling of Polymeric Auxetic Structures: A Review.

Area of Science:

• Materials Science
• Mechanical Engineering
• Manufacturing Technology

Background:

• Additive Manufacturing (AM) offers rapid, cost-effective prototyping for complex geometries.
• Fused Deposition Modelling (FDM) is a prominent AM technique due to its accessibility and design freedom.
• Auxetic structures exhibit a negative Poisson's ratio, leading to enhanced mechanical properties.

Purpose of the Study:

• To review the application of AM, specifically FDM, in designing and fabricating auxetic structures.
• To explore the potential of combining FDM with auxetic materials for advanced applications.
• To classify auxetic structures and materials and summarize AM processes.

Main Methods:

• Literature review of AM processes, focusing on FDM.
• Classification of auxetic structures and materials.
• Analysis of studies utilizing AM for auxetic structure production.

Main Results:

• FDM is suitable for creating auxetic structures with tailored microstructures and shapes.
• Auxetic structures produced via FDM demonstrate improved mechanical properties and compression resistance.
• The combination of FDM and auxetic materials enables novel structures with smart and multifunctional behaviors.

Conclusions:

• AM, particularly FDM, is a viable technique for producing advanced auxetic structures.
• These structures hold significant potential for applications requiring high compression resistance and tailored properties.
• Future research can focus on developing novel polymer- and composite-based auxetic structures with integrated functionalities.