Effect of Porosity on Mechanical Properties of 3D Printed Polymers: Experiments and Micromechanical Modeling Based on X-Ray Computed Tomography Analysis
| العنوان: | Effect of Porosity on Mechanical Properties of 3D Printed Polymers: Experiments and Micromechanical Modeling Based on X-Ray Computed Tomography Analysis |
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| المؤلفون: | Jerry Y. H. Fuh, Liping Zhao, Heow Pueh Lee, Xue Wang |
| المصدر: | Polymers, Vol 11, Iss 7, p 1154 (2019) Polymers Volume 11 Issue 7 |
| بيانات النشر: | MDPI AG, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | 0209 industrial biotechnology, Materials science, Polymers and Plastics, 3D printing, 02 engineering and technology, mechanical properties, Article, law.invention, micromechanical modeling, lcsh:QD241-441, 020901 industrial engineering & automation, lcsh:Organic chemistry, Machining, law, Destructive testing, Thermal, Composite material, Porosity, X-ray computed tomography, chemistry.chemical_classification, Fused deposition modeling, business.industry, General Chemistry, Polymer, 021001 nanoscience & nanotechnology, chemistry, 0210 nano-technology, business, Reduction (mathematics) |
| الوصف: | Additive manufacturing (commonly known as 3D printing) is defined as a family of technologies that deposit and consolidate materials to create a 3D object as opposed to subtractive manufacturing methodologies. Fused deposition modeling (FDM), one of the most popular additive manufacturing techniques, has demonstrated extensive applications in various industries such as medical prosthetics, automotive, and aeronautics. As a thermal process, FDM may introduce internal voids and pores into the fabricated thermoplastics, giving rise to potential reduction on the mechanical properties. This paper aims to investigate the effects of the microscopic pores on the mechanical properties of material fabricated by the FDM process via experiments and micromechanical modeling. More specifically, the three-dimensional microscopic details of the internal pores, such as size, shape, density, and spatial location were quantitatively characterized by X-ray computed tomography (XCT) and, subsequently, experiments were conducted to characterize the mechanical properties of the material. Based on the microscopic details of the pores characterized by XCT, a micromechanical model was proposed to predict the mechanical properties of the material as a function of the porosity (ratio of total volume of the pores over total volume of the material). The prediction results of the mechanical properties were found to be in agreement with the experimental data as well as the existing works. The proposed micromechanical model allows the future designers to predict the elastic properties of the 3D printed material based on the porosity from XCT results. This provides a possibility of saving the experimental cost on destructive testing. |
| وصف الملف: | application/pdf |
| تدمد: | 2073-4360 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce243db8e26ec18be5a11266b141a84aTest https://doi.org/10.3390/polym11071154Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....ce243db8e26ec18be5a11266b141a84a |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20734360 |
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