Abstract
Nowadays, 3D printing technology has gained popularity in various industrial sectors, especially in the field of developing new products. This technology allows for the layer-by-layer construction of 3D prototypes. This research primarily focuses on the fatigue performance of 3D-printed components made of Polylactide (PLA). PLA is a versatile material and has a diverse range of applications in packaging, medical, household items, etc. The specimens were made following the ASTM D638 standard using the Fused Deposition Modeling (FDM) technique. A fatigue test was carried out to investigate fatigue performance by fluctuating the loads and speed of the rotating beam fatigue tester. The finding reveals that materials break under variable strains at a stress magnitude is less than the material's ultimate tensile strength. Furthermore, it was discovered that the degree of the stress triggering fatigue failure reduces as the number of stress cycles increases. Fatigue failure is characterized as a time-delayed fracture due to cyclic stress. The finding reveals that PLA has a low fatigue strength of 19.62N.
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