Mechanical Properties of Samples Based on Schwartz-P Minimal Surface
| Autor: | Maxim М. Sychov, S. V. Balabanov, Maxim Yu. Arsentev, A. I. Makogon |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Minimal surface Mechanical Engineering 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Finite element method Mechanics of Materials 0103 physical sciences General Materials Science Composite material 0210 nano-technology |
| Zdroj: | Materials Science Forum. 1040:185-190 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.1040.185 |
| Popis: | The article presents the results of a study of the physical and mechanical properties of cellular structures fabricated by means of additive manufacturing. The structural elements are repeating in three directions, and have a geometric shape of Schwarz-P surface. Samples in the form of a cube (size 30x30x30 mm) were created by layer-by-layer fusion of thermoplastic polymer on a FDM (Fused Deposition Modeling) 3D printer. Compression tests of samples with different geometry have shown that with an increase in the characteristic size of a repeating structural element with a decrease in the parameter (t), the strength of the samples increases and is maximal at t = -0.6. According to the calculations performed by the finite element method, this is associated with an increase in the area of the dangerous section. However, specimens with t = 0 have the highest specific strength. This is because the average curvature of products with t = 0 is zero at each point, which contributes to the effective distribution of mechanical stresses in the specimen. When t ≠ 0, the average curvature is constant, but has a non-zero value. |
| Databáze: | OpenAIRE |
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