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Updated: Sep 13, 2025

Fused Filament Fabrication FFF of Metal-Ceramic Components

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Published on: January 11, 2019

用有限元方法建模单向FFF打印零件的断裂行为

Simon Seibel¹, Josef Kiendl¹

¹Institute of Engineering Mechanics and Structural Analysis, Universität der Bundeswehr München, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany.

Progress in additive manufacturing

|July 28, 2025

概括

本研究介绍了一种有限元建模方法,用于合丝制造 (FFF) 部件. 这种方法准确地模拟了具有不同线程方向的FFF标本在拉力负荷下如何断裂.

科学领域:

材料科学材料科学材料科学
机械工程机械工程
计算力学计算力学计算力学

背景情况:

化纤维制造 (FFF) 是一种广泛使用的增材制造技术.
了解FFF零件的机械行为和断裂对于其可靠的应用至关重要.
现有的模型往往难以捕捉FFF特有的异构性和故障机制.

研究的目的:

开发一种有限元建模 (FEM) 方法,用于在拉伸负荷下模拟单向FFF打印的标本.
准确地预测具有不同向的FFF部件的断裂行为和机械反应.
为了将 mesostructural 布局 (线程方向) 与宏观断裂行为和零件强度相关联.

主要方法:

为FFF标本量身定制的有限元建模方法的实施.
对适用于异性质材料的不同故障标准的调查.
探索用于建模骨折和样本边缘的网状表示技术.
模拟拉伸负荷,直到最终的样本故障.

主要成果:

开发的FEM方法成功模拟了FFF标本的机械行为.
该模型捕捉了不同打印方向的实验观察到的故障模式.
模拟显示了零件强度对打印方向的特征依赖.
研究和优化了关键的建模方面,包括故障标准和网格细节.

结论:

这项工作提供了一种经过验证的FEM方法来建模FFF打印标本.
这种方法有效地将 mesostructural 设计 (打印方向) 与宏观断裂性能联系起来.
这些发现可以更准确地预测FFF部件的强度和故障,指导设计和制造.

关键词:

通过3D打印打印3D打印.增材制造增材制造是一种增材制造.有限元素分析的研究.骨折骨折骨折骨折是一种化丝制造的布局化丝制造的布局结构力学的结构力学.

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