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http://hdl.handle.net/10553/72926
| Title: | Surface roughness effects on the fatigue behaviour of gyroid cellular structures obtained by additive manufacturing | Authors: | Yánez Santana, Manuel Alejandro Fiorucci, Maria Paula Cuadrado Hernández, Alberto Javier Martel Fuentes, Oscar Monopoli, Donato |
UNESCO Clasification: | 33 Ciencias tecnológicas | Keywords: | Additive Manufacturing Bone Tissue Scaffold Fatigue Behaviour Gyroid Cellular Structures Surface Roughness |
Issue Date: | 2020 | Project: | "Mejora de la osteointegración de estructuras porosas de titanio mediante la optimización del diseño y modificación superficial con recubrimiento polimerico". | Journal: | International Journal of Fatigue | Abstract: | Surface roughness effects on the fatigue behaviour of gyroid cellular Ti-6Al-4 V structures obtained by additive manufacturing were investigated. The normalized fatigue strength values for 10^6 cycles, obtained from the S-N curves, were in the range of 0.21–0.23. Finite element analyses showed that stress peak points were located on the stress concentrators due to surface defects, and scanning electron microscopy images showed that crack initiation was located at the surface. It is concluded that the expected good fatigue behaviour due to the curvature in the junctions of the struts, is diminished because of the superficial roughness contributing to the notch effect. | URI: | http://hdl.handle.net/10553/72926 | ISSN: | 0142-1123 | DOI: | 10.1016/j.ijfatigue.2020.105702 | Source: | International Journal of Fatigue [ISSN 0142-1123], v. 138, 105702, (Septiembre 2020) |
| Appears in Collections: | Artículos |
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