Abstract Fused filament fabrication (FFF) is one of the most commonly practiced additive manufacturing processes due to its low-cost nature. However, there are many challenges faced by fused filament fabrication process with the most prominent examples being ability to produce stronger parts, general understanding of mechanics going into the process, limited printing envelope and etc. One of these challenges is the ability to predict mechanical behavior of the printed parts under external loads which is crucial to any engineering design and is an obstacle for the FFF-made parts. This study reports the application of asymptotic homogenization as a tool for predicting the mechanical properties of fused filament fabricated thermoplastics with line infill, grid infill, and gyroid structures. Predicted properties are vertified using microstructural and experimental analysis.

中文翻译：

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通过渐近均质化预测熔融长丝制造结构的机械性能

摘要 熔融长丝制造 (FFF) 因其低成本特性而成为最常用的增材制造工艺之一。然而，熔融长丝制造过程面临着许多挑战，最突出的例子是生产更坚固部件的能力、对进入该过程的力学的一般理解、有限的印刷外壳等。这些挑战之一是预测机械行为的能力在外部负载下打印部件的性能，这对任何工程设计都至关重要，并且是 FFF 制造部件的障碍。本研究报告了渐近均质化作为一种​​工具的应用，用于预测具有线填充、网格填充和螺旋结构的熔融长丝制造的热塑性塑料的机械性能。