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Eklemeli imalat olarak bilinen 3D baskı, uzun zamandır kullanılmaktadır. Eklemeli imalat bilgisayar yazılımı ve bilgisayar destekli tasarım (CAD) kullanarak 3B nesneler oluşturmasına izin vermektedir. 3D baskının mühendislik için artan kullanımı nedeniyle, basılı parçaların mekanik davranışını iyileştirmek için araç ve stratejilerin geliştirilmesi gerekli hale geldi. Kademeli gözenekli doku iskeleleri, kemik doku mühendisliği için oldukça önemlidir. Bu çalışmada, kortikal ve süngerimsi kemiklerin bimodal yapısına benzer kademeli gözenek yapısına sahip yeni bir hibrit doku iskele geliştirilmiştir. Doku iskelesi hibrit olarak tasarlanmış olup, 200-300-500 µm ve 200-500 µm olmak üzere üç ve iki kademeli gözenekte tasarlanmıştır. Doku iskelelerin gözenekliliği hesaplanmıştır. Mekanik davranışı simüle etmek için kademeli gözenekli hibrit doku iskelelerin stres analizi yapılmıştır. FEA sonuçlarına göre gözenekliliğin doku iskelelerin mekanik özellikleri üzerinde olumsuz etkiye sebep olduğu görülmüştür. Daha düşük gözenekliliği nedeniyle 200-500 µm-b hibrit doku iskelesi, FEA analizine göre en yüksek mekanik özelliklere sahip olmuştur.
3D printing, known as add-on manufacturing, has been used for a long time. Added manufacturing allows you to create 3B objects using computer software and computer-supported design (CAD). Due to the increasing use of 3D printing for engineering, the development of tools and strategies to improve the mechanical behavior of printed parts has become necessary. Progressive porous tissue scales are very important for bone tissue engineering. In this study, a new hybrid tissue scale with a gradual porous structure similar to the bimodal structure of the cortical and spongiform bones was developed. The fabric is designed as a hybrid and is designed in three and two-stage pores of 200-300-500 μm and 200-500 μm. The scale of the scale is calculated. Step-by-step stress analysis of the porous hybrid tissue is done to simulate mechanical behavior. According to the FEA findings, porousness has been shown to have a negative effect on the mechanical characteristics of tissue skeletons. Due to its lower porosity, the 200-500 μm-b hybrid tissue iskel has had the highest mechanical properties according to the FEA analysis.
3D printing, which is commonly known as additive manufacturing, was around for decades. It allowed users to create 3D objects using computer software and computer aided design (CAD). Due to the increasing use of 3D printing for engineering, the development of tools and strategies to improve the mechanical behavior of printed parts has become necessary. Scaffolds with gradient porosity becomes an attractive candidate for bone tissue engineering. In this paper, a novel hybrid scaffold with a graded pore structure similar to the bimodal structure of cortical and cancellous bones was described. The scaffolds were designed as hybrid, they had three and two grade as 200-300-500 µm, and 200-500 µm. Porosity of the scaffolds was calculated. Stress analysis of the hybrid scaffolds with graded porosity was carried out to simulate mechanical behavior. According to FEA results, porosity had negative effect on the mechanical properties of the scaffolds. Due to its lower porosity 200-500 µm-b hybrid scaffold had highest mechanical properties according to FEA analysis.
Alan : Fen Bilimleri ve Matematik; Mühendislik
Dergi Türü : Uluslararası
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