Numerical Simulation of Fatigue Crack Growth in Titanium Alloy Orthopaedic Plates
Biomaterials intended for orthopaedic plates manufacturing have much higher mechanical properties relative to the bone itself and still there are many cases where those plates fracture in service, with fatigue as the main failure mode. This causes problem with the healing process and requires that t...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek
2020-01-01
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| Series: | Tehnički Vjesnik |
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| Online Access: | https://hrcak.srce.hr/file/361330 |
| _version_ | 1797207066212827136 |
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| author | Filip Vučetić* Katarina Čolić Aleksandar Grbović Ana Petrović Aleksandar Sedmak Dražan Kozak Simon Sedmak |
| author_facet | Filip Vučetić* Katarina Čolić Aleksandar Grbović Ana Petrović Aleksandar Sedmak Dražan Kozak Simon Sedmak |
| author_sort | Filip Vučetić* |
| collection | DOAJ |
| description | Biomaterials intended for orthopaedic plates manufacturing have much higher mechanical properties relative to the bone itself and still there are many cases where those plates fracture in service, with fatigue as the main failure mode. This causes problem with the healing process and requires that the patient undergoes another surgery. Experience and knowledge of the orthopaedic surgeon is one of the most important factors contributing to the frequency of fatigue failures. If incorrectly implanted, plates will be subjected to overloading from the start, which is convenient for crack initiation. One of the most commonly used biocompatible materials for internal bone fixation is α + β titanium alloy Ti-6Al-4V. Focus of this study was to simulate the behaviour of titanium alloy orthopaedic plates in the presence of cracks under four-point bending. The extended finite element method (XFEM) in ANSYS was employed for this purpose. Loads correspond to the ones occurring in human tibia during gait cycle for different body weights. Experimental investigation of tensile and fracture mechanics parameters of Ti-6Al-4V alloy was conducted on tensile testing machine and fractomate. Numerical simulation established the optimal geometry from remaining life point of view, indicating large differences between different geometries. Results also have shown that the remaining life of orthopaedic plates is strongly dependant on patient's body weight (load) and that the relative differences in remaining life between compared plate geometries stay the same under different loads. Influence of corrosive environment of the human body was not taken into consideration. |
| first_indexed | 2024-04-24T09:17:00Z |
| format | Article |
| id | doaj.art-5d6757567fb34ad791f7c2c9ec8b9ce9 |
| institution | Directory Open Access Journal |
| issn | 1330-3651 1848-6339 |
| language | English |
| last_indexed | 2024-04-24T09:17:00Z |
| publishDate | 2020-01-01 |
| publisher | Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek |
| record_format | Article |
| series | Tehnički Vjesnik |
| spelling | doaj.art-5d6757567fb34ad791f7c2c9ec8b9ce92024-04-15T16:40:37ZengFaculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in OsijekTehnički Vjesnik1330-36511848-63392020-01-012761917192210.17559/TV-20200617192027Numerical Simulation of Fatigue Crack Growth in Titanium Alloy Orthopaedic PlatesFilip Vučetić*0Katarina Čolić1Aleksandar Grbović2Ana Petrović3Aleksandar Sedmak4Dražan Kozak5Simon Sedmak6Innovation Center of Faculty of Mechanical Engineering, Belgrade, Kraljice Marije 16, 11120 Belgrade, Republic of SerbiaInnovation Center of Faculty of Mechanical Engineering, Belgrade, Kraljice Marije 16, 11120 Belgrade, Republic of SerbiaUniversity of Belgrade, Faculty of Mechanical Engineering, Kraljice Marije 16, 11120 Belgrade, Republic of SerbiaUniversity of Belgrade, Faculty of Mechanical Engineering, Kraljice Marije 16, 11120 Belgrade, Republic of SerbiaUniversity of Belgrade, Faculty of Mechanical Engineering, Kraljice Marije 16, 11120 Belgrade, Republic of SerbiaMechanical Engineering Faculty in Slavonski Brod, University of Slavonski Brod, Trg Ivane Brlic Mazuranic 2, HR-35000 Slavonski Brod, CroatiaInnovation Center of Faculty of Mechanical Engineering, Belgrade, Kraljice Marije 16, 11120 Belgrade, Republic of SerbiaBiomaterials intended for orthopaedic plates manufacturing have much higher mechanical properties relative to the bone itself and still there are many cases where those plates fracture in service, with fatigue as the main failure mode. This causes problem with the healing process and requires that the patient undergoes another surgery. Experience and knowledge of the orthopaedic surgeon is one of the most important factors contributing to the frequency of fatigue failures. If incorrectly implanted, plates will be subjected to overloading from the start, which is convenient for crack initiation. One of the most commonly used biocompatible materials for internal bone fixation is α + β titanium alloy Ti-6Al-4V. Focus of this study was to simulate the behaviour of titanium alloy orthopaedic plates in the presence of cracks under four-point bending. The extended finite element method (XFEM) in ANSYS was employed for this purpose. Loads correspond to the ones occurring in human tibia during gait cycle for different body weights. Experimental investigation of tensile and fracture mechanics parameters of Ti-6Al-4V alloy was conducted on tensile testing machine and fractomate. Numerical simulation established the optimal geometry from remaining life point of view, indicating large differences between different geometries. Results also have shown that the remaining life of orthopaedic plates is strongly dependant on patient's body weight (load) and that the relative differences in remaining life between compared plate geometries stay the same under different loads. Influence of corrosive environment of the human body was not taken into consideration.https://hrcak.srce.hr/file/361330ASTM F382crack growthorthopaedic plates, Ti-6Al-4VXFEM |
| spellingShingle | Filip Vučetić* Katarina Čolić Aleksandar Grbović Ana Petrović Aleksandar Sedmak Dražan Kozak Simon Sedmak Numerical Simulation of Fatigue Crack Growth in Titanium Alloy Orthopaedic Plates Tehnički Vjesnik ASTM F382 crack growth orthopaedic plates, Ti-6Al-4V XFEM |
| title | Numerical Simulation of Fatigue Crack Growth in Titanium Alloy Orthopaedic Plates |
| title_full | Numerical Simulation of Fatigue Crack Growth in Titanium Alloy Orthopaedic Plates |
| title_fullStr | Numerical Simulation of Fatigue Crack Growth in Titanium Alloy Orthopaedic Plates |
| title_full_unstemmed | Numerical Simulation of Fatigue Crack Growth in Titanium Alloy Orthopaedic Plates |
| title_short | Numerical Simulation of Fatigue Crack Growth in Titanium Alloy Orthopaedic Plates |
| title_sort | numerical simulation of fatigue crack growth in titanium alloy orthopaedic plates |
| topic | ASTM F382 crack growth orthopaedic plates, Ti-6Al-4V XFEM |
| url | https://hrcak.srce.hr/file/361330 |
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