Fatigue properties of Ti-6Al-4V TPMS scaffolds fabricated via laser powder bed fusion

Maryam Tilton; Alireza Borjali; Jacklyn C. Griffis; Kartik Mangudi Varadarajan; Guha P. Manogharan

doi:10.1016/j.mfglet.2023.06.005

Fatigue properties of Ti-6Al-4V TPMS scaffolds fabricated via laser powder bed fusion

Maryam Tilton, Alireza Borjali, Jacklyn C. Griffis, Kartik Mangudi Varadarajan, Guha P. Manogharan

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Variabilities imposed by the laser powder bed fusion (L-PBF) and structural design processes have resulted in deficient knowledge of structure-property relationships of the bone-inspired scaffolds (i.e., meta-biomaterials). Herein, we present new findings on the fatigue performance of L-PBF Ti-6Al-4V scaffolds designed based on triply periodic minimal surfaces (TPMSs). We found that for a similar porosity and applied stress-amplitude, Schoen-IWP scaffolds exhibit significantly higher (97%) (p < 0.05) fatigue life when compared to the Primitive; however, Primitive scaffolds could more effectively mimic the compressive mechanical properties of trabecular bone. These findings help pave the path for spatial microarchitectural design of load-bearing orthopaedic implants.

Original language	English (US)
Pages (from-to)	32-38
Number of pages	7
Journal	Manufacturing Letters
Volume	37
DOIs	https://doi.org/10.1016/j.mfglet.2023.06.005
State	Published - Sep 2023

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Industrial and Manufacturing Engineering

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10.1016/j.mfglet.2023.06.005

Cite this

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title = "Fatigue properties of Ti-6Al-4V TPMS scaffolds fabricated via laser powder bed fusion",

abstract = "Variabilities imposed by the laser powder bed fusion (L-PBF) and structural design processes have resulted in deficient knowledge of structure-property relationships of the bone-inspired scaffolds (i.e., meta-biomaterials). Herein, we present new findings on the fatigue performance of L-PBF Ti-6Al-4V scaffolds designed based on triply periodic minimal surfaces (TPMSs). We found that for a similar porosity and applied stress-amplitude, Schoen-IWP scaffolds exhibit significantly higher (97%) (p < 0.05) fatigue life when compared to the Primitive; however, Primitive scaffolds could more effectively mimic the compressive mechanical properties of trabecular bone. These findings help pave the path for spatial microarchitectural design of load-bearing orthopaedic implants.",

author = "Maryam Tilton and Alireza Borjali and Griffis, {Jacklyn C.} and Varadarajan, {Kartik Mangudi} and Manogharan, {Guha P.}",

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T1 - Fatigue properties of Ti-6Al-4V TPMS scaffolds fabricated via laser powder bed fusion

AU - Tilton, Maryam

AU - Borjali, Alireza

AU - Griffis, Jacklyn C.

AU - Varadarajan, Kartik Mangudi

AU - Manogharan, Guha P.

PY - 2023/9

Y1 - 2023/9

N2 - Variabilities imposed by the laser powder bed fusion (L-PBF) and structural design processes have resulted in deficient knowledge of structure-property relationships of the bone-inspired scaffolds (i.e., meta-biomaterials). Herein, we present new findings on the fatigue performance of L-PBF Ti-6Al-4V scaffolds designed based on triply periodic minimal surfaces (TPMSs). We found that for a similar porosity and applied stress-amplitude, Schoen-IWP scaffolds exhibit significantly higher (97%) (p < 0.05) fatigue life when compared to the Primitive; however, Primitive scaffolds could more effectively mimic the compressive mechanical properties of trabecular bone. These findings help pave the path for spatial microarchitectural design of load-bearing orthopaedic implants.

AB - Variabilities imposed by the laser powder bed fusion (L-PBF) and structural design processes have resulted in deficient knowledge of structure-property relationships of the bone-inspired scaffolds (i.e., meta-biomaterials). Herein, we present new findings on the fatigue performance of L-PBF Ti-6Al-4V scaffolds designed based on triply periodic minimal surfaces (TPMSs). We found that for a similar porosity and applied stress-amplitude, Schoen-IWP scaffolds exhibit significantly higher (97%) (p < 0.05) fatigue life when compared to the Primitive; however, Primitive scaffolds could more effectively mimic the compressive mechanical properties of trabecular bone. These findings help pave the path for spatial microarchitectural design of load-bearing orthopaedic implants.

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Fatigue properties of Ti-6Al-4V TPMS scaffolds fabricated via laser powder bed fusion

Abstract

All Science Journal Classification (ASJC) codes

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