3D printing of auxetic structures by the FDM method

DOI: 10.62564/M4-VM2336

Vladislav Moroz, Vladislav Naumenko, Ostap Zgalat-Lozynskyy

Frantsevich Institute for Problems of Materials Science National Academy of Science of Ukraine


With the development of 3D printing techniques, metamaterials, such as auxetic structures, became a new area of research. 3D printing of auxetic structures from various materials has attracted considerable interest in the scientific community due to their unique properties, such as negative Poisson's ratio. Using various composite materials, it is possible to achieve high strength, lumpiness, biocompatibility and other properties that make them attractive for various technological and engineering applications. In many studies, emphasis is placed on the development of new methods of manufacturing auxetic materials, as well as on understanding their microstructure and deformation mechanisms. For example, the possibility of using various manufacturing techniques, including 3D printing, to create materials with desired auxetic properties is being explored. Some research is aimed at developing materials with unique combinations of properties, such as combined auxetic and piezoelectric behavior, which may have applications in sensor and actuator systems, as well as in aerospace and biomedical and medical fields. At current investigation the auxetics were printed on a Creality Ender-5 printer using 1.75 mm diameter PLA filaments reinforced with ceramic particles and fibers. 3D models are designed and edited in Blender, Autodesk Netfabb programs, prepared for printing in Simplify3D. The use of different materials and their combinations in 3D printing allows you to create materials with different properties in one part. This opens up new possibilities for creating auxetic materials with unique mechanical and physical characteristics.

Keywords
Auxetic, Ceramic, Fiber,

Acknowledgments
The work the was done as part of the joint UKRAINIAN-GERMAN R\&D project "Machine Learning Enhanced Additive Manufacturing"

References
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