The Effect of Layer Orientation on the Fatigue Behavior of 3D Printed PLA Samples

Fused deposition modeling (FDM) is an additive manufacturing process used to fabricate 3D parts from 2D layers. An experimental analysis of fatigue characteristics of FDM-processed PLA samples reveals that the concentric build orientation results in the highest cycles of fatigue, ultimate strength, and impact energy.

Format: Paperback / softback
Length: 48 pages
Publication date: 11 March 2023
Publisher: Springer International Publishing AG

Fused deposition modeling (FDM) is an additive manufacturing (AM) technique used to create 3D parts by building up 2D layers. This book explores the experimental analysis of fatigue characteristics of FDM-processed polylactic acid (PLA) samples. The findings reveal that the concentric build orientation yields the highest number of fatigue cycles, ultimate strength, and impact energy. In this case study, the influence of layer orientation on the fatigue behavior of 3D-printed PLA samples is investigated.

FDM is a versatile AM process that can produce complex 3D parts with high precision and accuracy. It works by melting a filament of thermoplastic material, such as PLA, and depositing it layer by layer onto a build platform. The process allows for the creation of parts with intricate geometries, hollow structures, and even complex surface textures.

One of the key advantages of FDM is its ability to fabricate parts with a wide range of materials. PLA, for example, is a biodegradable and renewable resource that is commonly used in 3D printing. It is known for its low cost, ease of use, and good mechanical properties, making it an ideal material for a wide range of applications, including consumer products, medical devices, and industrial parts.

In this book, the authors present an experimental analysis of the fatigue characteristics of FDM-processed PLA samples. The samples were printed with different layer orientations, including concentric, cylindrical, and spiral, and subjected to various loading conditions. The results of the analysis indicate that the concentric build orientation provides the highest cycles of fatigue, ultimate strength, and impact energy.

The effect of layer orientation on the fatigue behavior of 3D-printed PLA samples is an important consideration for designers and manufacturers. Different layer orientations can affect the mechanical properties of the parts, including their strength, stiffness, and toughness. For example, a concentric build orientation can result in a part with higher strength and stiffness, while a cylindrical build orientation can result in a part with higher toughness and impact resistance.

The authors also discuss the influence of other factors, such as printing speed, layer thickness, and cooling conditions, on the fatigue behavior of 3D-printed PLA samples. They suggest that optimizing these factors can help improve the fatigue performance of FDM-processed PLA parts and extend their lifespan.

In conclusion, this book presents a comprehensive exploration of fused deposition modeling and its application in the fabrication of 3D parts. It provides an experimental analysis of the fatigue characteristics of FDM-processed PLA samples and discusses the effect of layer orientation on the mechanical properties of 3D-printed parts. The authors also provide recommendations for optimizing the printing process to improve the fatigue performance of FDM-processed PLA parts and extend their lifespan.

Weight: 109g
Dimension: 235 x 155 (mm)
ISBN-13: 9783031225727
Edition number: 1st ed. 2023