Prediction of Compressibility and Mechanical Properties of Porous Structures based on Gibson-Ashby Model

Zhongpu Niu ； Songhao Lu

《International Core Journal of Engineering》 9卷8期 (2023/08) Pp. 42-47

https://doi.org/10.6919/ICJE.202308_9(8).0008

摘要

Porous structure has become one of the most popular materials in various research fields, and has been widely used in aerospace devices, biomedical devices and other fields due to the good specific strength, energy absorption and other characteristics. Based on Gibson-Ashby model, the relationship between mechanical properties of porous structures with AlSi10Mg as the base material and the volume fraction was established. By adjusting the volume fraction, the mechanical properties of Dodeca and Octa porous materials could be predicted and designed more accurately. The porous structures with 80% and 90% porosity were prepared by SLM technology. Gibson-Ashby mathematical model with ASi10Mg as the matrix material was established by quasi-static compression test and numerical simulation techniques for different porous material structures, which is convenient for data prediction of mechanical behavior of porous materials with different volume fractions.

關鍵字

Porous Structure ； Gibson-Ashby Model ； Dodeca and Octa Material ； ASi10Mg

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