Numerical investigation of fatigue behavior in Ti-6Al-4V orthopedic hip implants subjected to different environments
2024
Autori
Smoljanić, TamaraMilović, Ljubica
Sedmak, Simon
Milovanović, Aleksa
Čolić, Katarina
Radaković, Zoran
Sedmak, Aleksandar
Ostala autorstva
Churyumov, Alexander Yu.Garcea, Giovanni
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
In this paper, hip implants made of Ti-6Al-4V titanium alloy are analyzed numerically using Extended Finite Element Method XFEM. The combined effect of corrosion and fatigue was considered here since this is a common cause of failure of hip implants. Experimental testing of Ti-6Al-4V alloy was performed to determine its mechanical properties under different working environments, including normal, salty, and humid conditions. The integrity and life of the hip implant were assessed using the Linear Elastic Fracture Mechanics (LEFM) approach. For this purpose, the conditional fracture toughness Kq using CT specimens from all three groups (normal, humid, salty conditions) were determined. This provided insight into how different aggressive environments affect the behavior of Ti-6Al-4V alloy; i.e., how much its resistance to crack growth would degrade depending on conditions corresponding to the real exploitation of hip implants. Next, analytical and XFEM analyses of fatigue behavior in ter...ms of the number of cycles were performed for all three groups, and the obtained results showed good agreement, confirming the validity of the integrity assessment approach shown in this work, which also represented a novel approach since fatigue and corrosion effects were investigated simultaneously.
Ključne reči:
Ti-6Al-4V alloy / hip implants / fatigue crack growth / corrosion / Extended Finite Element MethodIzvor:
Materials, 2024, 17, 15, 3796-Izdavač:
- MDPI
Finansiranje / projekti:
- info:eu-repo/grantAgreement/MESTD/inst-2020/200213/RS/ (-)
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200105 (Univerzitet u Beogradu, Mašinski fakultet) (RS-MESTD-inst-2020-200105)
- Ministarstvo nauke, tehnološkog razvoja i inovacija Republike Srbije, institucionalno finansiranje - 200135 (Univerzitet u Beogradu, Tehnološko-metalurški fakultet) (RS-MESTD-inst-2020-200135)
Kolekcije
Institucija/grupa
Mašinski fakultetTY - JOUR AU - Smoljanić, Tamara AU - Milović, Ljubica AU - Sedmak, Simon AU - Milovanović, Aleksa AU - Čolić, Katarina AU - Radaković, Zoran AU - Sedmak, Aleksandar PY - 2024 UR - https://machinery.mas.bg.ac.rs/handle/123456789/7910 AB - In this paper, hip implants made of Ti-6Al-4V titanium alloy are analyzed numerically using Extended Finite Element Method XFEM. The combined effect of corrosion and fatigue was considered here since this is a common cause of failure of hip implants. Experimental testing of Ti-6Al-4V alloy was performed to determine its mechanical properties under different working environments, including normal, salty, and humid conditions. The integrity and life of the hip implant were assessed using the Linear Elastic Fracture Mechanics (LEFM) approach. For this purpose, the conditional fracture toughness Kq using CT specimens from all three groups (normal, humid, salty conditions) were determined. This provided insight into how different aggressive environments affect the behavior of Ti-6Al-4V alloy; i.e., how much its resistance to crack growth would degrade depending on conditions corresponding to the real exploitation of hip implants. Next, analytical and XFEM analyses of fatigue behavior in terms of the number of cycles were performed for all three groups, and the obtained results showed good agreement, confirming the validity of the integrity assessment approach shown in this work, which also represented a novel approach since fatigue and corrosion effects were investigated simultaneously. PB - MDPI T2 - Materials T1 - Numerical investigation of fatigue behavior in Ti-6Al-4V orthopedic hip implants subjected to different environments IS - 15 SP - 3796 VL - 17 DO - 10.3390/ma17153796 ER -
@article{ author = "Smoljanić, Tamara and Milović, Ljubica and Sedmak, Simon and Milovanović, Aleksa and Čolić, Katarina and Radaković, Zoran and Sedmak, Aleksandar", year = "2024", abstract = "In this paper, hip implants made of Ti-6Al-4V titanium alloy are analyzed numerically using Extended Finite Element Method XFEM. The combined effect of corrosion and fatigue was considered here since this is a common cause of failure of hip implants. Experimental testing of Ti-6Al-4V alloy was performed to determine its mechanical properties under different working environments, including normal, salty, and humid conditions. The integrity and life of the hip implant were assessed using the Linear Elastic Fracture Mechanics (LEFM) approach. For this purpose, the conditional fracture toughness Kq using CT specimens from all three groups (normal, humid, salty conditions) were determined. This provided insight into how different aggressive environments affect the behavior of Ti-6Al-4V alloy; i.e., how much its resistance to crack growth would degrade depending on conditions corresponding to the real exploitation of hip implants. Next, analytical and XFEM analyses of fatigue behavior in terms of the number of cycles were performed for all three groups, and the obtained results showed good agreement, confirming the validity of the integrity assessment approach shown in this work, which also represented a novel approach since fatigue and corrosion effects were investigated simultaneously.", publisher = "MDPI", journal = "Materials", title = "Numerical investigation of fatigue behavior in Ti-6Al-4V orthopedic hip implants subjected to different environments", number = "15", pages = "3796", volume = "17", doi = "10.3390/ma17153796" }
Smoljanić, T., Milović, L., Sedmak, S., Milovanović, A., Čolić, K., Radaković, Z.,& Sedmak, A.. (2024). Numerical investigation of fatigue behavior in Ti-6Al-4V orthopedic hip implants subjected to different environments. in Materials MDPI., 17(15), 3796. https://doi.org/10.3390/ma17153796
Smoljanić T, Milović L, Sedmak S, Milovanović A, Čolić K, Radaković Z, Sedmak A. Numerical investigation of fatigue behavior in Ti-6Al-4V orthopedic hip implants subjected to different environments. in Materials. 2024;17(15):3796. doi:10.3390/ma17153796 .
Smoljanić, Tamara, Milović, Ljubica, Sedmak, Simon, Milovanović, Aleksa, Čolić, Katarina, Radaković, Zoran, Sedmak, Aleksandar, "Numerical investigation of fatigue behavior in Ti-6Al-4V orthopedic hip implants subjected to different environments" in Materials, 17, no. 15 (2024):3796, https://doi.org/10.3390/ma17153796 . .