ISTCONF FINITE ELEMENTS ANALYSIS OF PLA 3D-PRINTED ELEMENTS AND SHAPE OPTIMIZATION

Proceedings of The 5th International Conference on Innovation in Science and Technology Pub Date : 2018-12-15 DOI:10.33422/5ist.2018.12.118

Paweł Żur

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Abstract

The paper presents the Finite Element Method (FEM) analysis of 3D-printed parts and further shape optimization. Information obtained from the static bending test allowed to carry out the FEM analysis in Siemens NX software with Nastran module. The first part of the research was a comparative analysis of FEM analysis of a single specimen with real-life data collected for polylactide (PLA) specimens made in Fused Deposition Modelling (FDM) technology. Next step was FEM analysis of a PLA brake lever which is used in Silesian Greenpower electric vehicle. Silesian Greenpower team uses 3D-printing for rapid prototyping and manufacturing of customized parts of almost any shape for their car. Purpose of the Finite Element Analysis was shape optimization of the lever in order to ensure adequate safety and ergonomics of use. The strains during its operation should not exceed the maximum permissible for the material used. As this is a key element of safety, a safety factor of level 3 has been adopted. FEM analysis contributed to weight reduction and shape optimization to withstand applied forces.

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聚乳酸3d打印元件的有限元分析及形状优化

本文介绍了3d打印零件的有限元分析和进一步的形状优化。从静态弯曲试验中获得的信息允许在西门子NX软件中使用Nastran模块进行有限元分析。研究的第一部分是对用熔融沉积建模(FDM)技术制作的聚乳酸(PLA)样品进行的有限元分析与实际数据的比较分析。对西里西亚绿色电动汽车用PLA制动杆进行了有限元分析。西里西亚Greenpower团队使用3d打印技术快速制作原型，并为他们的汽车定制几乎任何形状的部件。有限元分析的目的是优化杠杆的形状，以确保足够的安全性和人体工程学的使用。其运行过程中的应变不应超过所用材料的最大允许值。由于这是安全的关键因素，因此采用了3级安全系数。有限元分析有助于减轻重量和形状优化，以承受施加的力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of The 5th International Conference on Innovation in Science and Technology

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