Influence of Structural Parameters on Mechanical Properties of Triply Periodic Minimal Surface Structure
Abstract
:1. Introduction
2. Experimental Setup
2.1. Sample Preparation
2.2. Compression and Tensile Experiments
2.3. Microstructure Observation
3. Simulation
3.1. Finite Element Model
3.2. Simulation Results Considering Void Defects
4. The Influence of Structural Parameters
4.1. Parameter Setting of the D structure
4.2. GA Fitting Formulas of the D Structure
4.3. The Modification of GA Fitting Formulas
4.4. Prediction Formulas of Mechanical Properties Based on Structural Parameters
Prediction Formulas
5. Structural Lightweight Design Based on D Structure Filling
5.1. Density Optimization of the Assembly Block
5.2. Stress Analysis of the Assembly Block
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Nomenclature
Elastic modulus of the porous structure | |
Modulus of the material constituting the porous structure | |
Density of the porous structure | |
Density of the material constituting the porous structure | |
Compress stress of the porous structure | |
Compress stress of the material constituting the porous structure | |
Equivalent cross-sectional area of the porous structure | |
Volume of the porous structure | |
Cell size of porous structure along loading direction | |
Equivalent nominal modulus of the porous structure | |
Equivalent nominal strength of the porous structure | |
The surface area of the porous structure | |
The surface thickness of the porous structure | |
Material and structure constant | |
Material and structure constant | |
Material and structure constant | |
Material and structure constant | |
Material and structure constant | |
Material and structure constant | |
Material and structure constant | |
Material and structure constant |
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Laser Power (W) | Scanning Speed (mm/s) | Lap Ratio | Layer Thickness (mm) |
---|---|---|---|
225 | 1000 | 0.12 | 0.03 |
TC4 | E (GPa) | ||
---|---|---|---|
106 | 1194 | 1066 |
Surface Thickness (mm) | Cell Size (mm) | Relative Density | Surface Thickness (mm) | Cell Size (mm) | Relative Density |
---|---|---|---|---|---|
0.25 | 10 | 0.1 | 1 | 10 | 0.36 |
12.5 | 0.08 | 12.5 | 0.29 | ||
15 | 0.06 | 15 | 0.25 | ||
17.5 | 0.06 | 17.5 | 0.22 | ||
20 | 0.05 | 20 | 0.19 | ||
— | — | 22.5 | 0.17 | ||
— | — | 25 | 0.15 | ||
0.5 | 10 | 0.19 | 1.25 | 10 | 0.42 |
12.5 | 0.15 | 12.5 | 0.36 | ||
15 | 0.13 | 15 | 0.31 | ||
17.5 | 0.11 | 17.5 | 0.27 | ||
20 | 0.1 | 20 | 0.23 | ||
22.5 | 0.09 | 22.5 | 0.21 | ||
25 | 0.08 | 25 | 0.19 | ||
0.75 | 10 | 0.28 | 1.5 | 10 | 0.48 |
12.5 | 0.23 | 12.5 | 0.41 | ||
15 | 0.19 | 15 | 0.36 | ||
17.5 | 0.16 | 17.5 | 0.31 | ||
20 | 0.14 | 20 | 0.28 | ||
22.5 | 0.13 | 22.5 | 025 | ||
25 | 0.12 | 25 | 0.23 |
Cell Size/mm | Surface Thickness/mm | Equivalent Nominal Strength/MPa | Equivalent Nominal Modulus/MPa | Poisson’s Ratio | |
---|---|---|---|---|---|
Cell 1a | 15 | 1.25 | 649 | 52,167 | 0.09 |
Cell 1b | 15 | 0.75 | 595 | 47,519 | 0.1 |
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Chen, X.; Sun, G.; Zhu, J.; Kang, W.; Shang, D.; Deng, Z. Influence of Structural Parameters on Mechanical Properties of Triply Periodic Minimal Surface Structure. Metals 2023, 13, 285. https://doi.org/10.3390/met13020285
Chen X, Sun G, Zhu J, Kang W, Shang D, Deng Z. Influence of Structural Parameters on Mechanical Properties of Triply Periodic Minimal Surface Structure. Metals. 2023; 13(2):285. https://doi.org/10.3390/met13020285
Chicago/Turabian StyleChen, Xiusi, Guoqin Sun, Jiaqi Zhu, Wei Kang, Deguang Shang, and Zhanfeng Deng. 2023. "Influence of Structural Parameters on Mechanical Properties of Triply Periodic Minimal Surface Structure" Metals 13, no. 2: 285. https://doi.org/10.3390/met13020285