通过 FDM 工艺 3D 打印的拓扑优化 ABS 中间结构的弯曲行为：数值和实验研究

Q3 Engineering

Journal of Achievements in Materials and Manufacturing Engineering Pub Date : 2023-10-01 DOI:10.5604/01.3001.0054.1593

I. Antar, M. Othmani, K. Zarbane, M. El Oumami, Z. Beidouri

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引用次数: 0

摘要

本文旨在通过数值和实验研究光栅角度对优化印刷结构的结构性能的影响。采用各向同性固态材料与惩罚（SIMP）方法解决了三点弯曲下的梅塞施米特-博尔科-布洛姆（MBB）梁的顺应性最小化拓扑优化（TO）问题，然后使用熔融长丝制造（FFF）技术以不同光栅角度对优化设计进行了添加式制造。对这些几何形状的机械性能进行了研究和比较。通过基于 G 代码文件的 Python 脚本开发了一种数值方法，并将其集成到 ABAQUS 中，以创建与物理试样相同的虚拟样品。这项研究表明，光栅的选择对印刷优化结构的机械性能有显著影响。事实上，与 45 和 0 光栅角相比，以 90 光栅角印刷的优化结构性能最高，而以 45 光栅角印刷的优化结构性能一般。实验测试验证了数值数据，误差约为 1.09%。在这项研究中，我们研究了三种光栅角度（90、45 和 0）对 FFF 优化部件机械性能的影响。随后的研究将重点关注其他印刷参数，包括其他光栅角度。本文所做的分析可用于制造 FFF 优化结构。本文采用新颖的数值方法评估了光栅角度对印刷优化结构的影响。本文提出的结果将为许多研究人员提供参考，使他们能够通过结合印刷参数来开发 TO 结构的制造方法。

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Bending behaviour of a topologically optimised ABS mesostructures 3D printed by the FDM process: numerical and experimental study

This paper is intended to investigate numerically and experimentally the influence of raster angle on the structural performance of an optimised printed structure.The topology optimisation (TO) problem for compliance minimisation using Solid Isotropic Material with Penalization (SIMP) method has been solved with a Messerschmitt-Bolkow-Blohm (MBB) beam under three-point bending, then the resulting optimal design was additively manufactured using Fused Filament Fabrication (FFF) with varying raster angle. The mechanical behaviour of these geometries was investigated and compared. A numerical approach has been developed through a script in Python based on the G-code file and integrated into an ABAQUS to create a virtual sample identical to the physical specimen. The numerical results were coupled with an experimental investigation.The investigation presented in this work showed that the choice of raster significantly affects on the mechanical performance of the printed optimised structures. Indeed, the optimised structure printed with a 90 raster angle has the highest performance in contrast to 45 and 0, while the optimised structure printed at a 45 raster angle has an average performance. The experimental test validated the numerical data with an error of approximately 1.09%. Our numerical results are in good conformity with the experimental outcomes.In this research, we studied the impact of three raster angles (90, 45 and 0) on the mechanical behaviour of a FFF optimised part. The subsequent study will focus on the other print parameters, including the other raster angles.The analysis presented in this paper can be used for manufacturing a FFF optimised structure.This paper evaluates the effect of raster angle in printed optimised structures using a novel numerical approach. The presented results will establish a reference that many researchers can gear to develop the fabrication of TO structures by incorporating printing parameters.

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来源期刊

Journal of Achievements in Materials and Manufacturing Engineering Engineering-Industrial and Manufacturing Engineering

CiteScore

2.10

自引率

0.00%

发文量

期刊介绍： The Journal of Achievements in Materials and Manufacturing Engineering has been published by the Association for Computational Materials Science and Surface Engineering in collaboration with the World Academy of Materials and Manufacturing Engineering WAMME and the Section Metallic Materials of the Committee of Materials Science of the Polish Academy of Sciences as a monthly. It has 12 points which was received during the evaluation by the Ministry of Science and Higher Education journals and ICV 2017:100 on the ICI Journals Master list announced by the Index Copernicus. It is a continuation of "Proceedings on Achievements in Mechanical and Materials Engineering" published in 1992-2005. Scope: Materials[...] Properties[...] Methodology of Research[...] Analysis and Modelling[...] Manufacturing and Processingv Biomedical and Dental Engineering and Materials[...] Cleaner Production[...] Industrial Mangement and Organisation [...] Education and Research Trends[...]