三维打印开孔细胞结构的孔结构对其抗机械载荷能力的影响：第二部分 - 数值分析

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-07-25 DOI:10.2478/ama-2024-0047

M. Aladag, Monika Bernacka, Adrian Dubicki, Izabela Zgłobicka

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引用次数: 0

摘要

本研究的目的是研究孔隙形状对三维打印获得的开放孔隙晶格结构抗压性的影响。为此，研究了三种不同的孔隙结构：椭圆形、螺旋形和 X 形。这些结构的开放孔隙率分别为 54%、50% 和 60%。通过压缩试验评估了它们的机械性能，并使用有限元建模（FEM）分析了它们的行为。结果表明，孔隙大小对蜂窝结构的刚度有显著影响。据观察，由于应力分布均匀，螺旋结构在所测试的结构中表现出更优越的性能。研究还发现，椭圆形和 x 形结构对局部变形更为敏感。

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Effect of Pore Architecture of 3D Printed Open Porosity Cellular Structures on Their Resistance to Mechanical Loading: Part II – Numerical Analysis

The objective of this study was to investigate pore shape effect on resistance to compression of open porosity lattice structures obtained with 3D printing. To this end, three distinct pore architectures were investigated: ellipsoidal, helical and X-shape. Open porosity of these structures was 54%, 50% and 60%, respectively. Their mechanical properties were evaluated through compression tests, and their behaviours were analysed using finite element modelling (FEM). The results indicated that the pore size has a significant effect on the stiffness of cellular structures. It was observed that the helical structure exhibited superior properties among the structures tested due to homogenous stress distribution. It was also found that ellipsoidal and x-shape structures are much more sensitive to localisation of the deformation.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.