Numerical analysis of stress distribution in total hip replacement implant
Апстракт
Total hip replacement implants represent permanent implants and require large bone and cartilage removal during implantation. Revision would affect joint capability to sustain load, which makes this procedure irreversible. During exploitation, i.e. everyday activities, implants are subjected to dynamic loading. Thereby, these structures are prone to failure by fatigue. Highest stress states on total hip replacement implants are present in the neck area of the implant, which is a position of crack initiation. Under loading the implant neck exhibits tension and compression zones. Crack initiation in the neck side under tension would lead to crack opening and certain fracture. Implants are examined by experimental and numerical methods. The most common numerical method is finite element method (FEM) used to simulate different loading conditions. In this paper numerical analysis of stress distribution in the neck area is performed on a specific implant. Four numerical models are created in... order to show how certain design solutions influence the stress distribution in the neck area.
Кључне речи:
total hip replacement implant / stress distribution / finite element method / fatigue crack / Co-Cr alloyИзвор:
Structural Integrity and Life, 2017, 17, 2, 139-144Издавач:
- Institut za ispitivanje materijala, Beograd
Институција/група
Inovacioni centarTY - JOUR AU - Milovanović, Aleksa AU - Sedmak, Aleksandar AU - Čolić, Katarina AU - Tatić, Uroš AU - Đorđević, Branislav R. PY - 2017 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2740 AB - Total hip replacement implants represent permanent implants and require large bone and cartilage removal during implantation. Revision would affect joint capability to sustain load, which makes this procedure irreversible. During exploitation, i.e. everyday activities, implants are subjected to dynamic loading. Thereby, these structures are prone to failure by fatigue. Highest stress states on total hip replacement implants are present in the neck area of the implant, which is a position of crack initiation. Under loading the implant neck exhibits tension and compression zones. Crack initiation in the neck side under tension would lead to crack opening and certain fracture. Implants are examined by experimental and numerical methods. The most common numerical method is finite element method (FEM) used to simulate different loading conditions. In this paper numerical analysis of stress distribution in the neck area is performed on a specific implant. Four numerical models are created in order to show how certain design solutions influence the stress distribution in the neck area. PB - Institut za ispitivanje materijala, Beograd T2 - Structural Integrity and Life T1 - Numerical analysis of stress distribution in total hip replacement implant EP - 144 IS - 2 SP - 139 VL - 17 UR - https://hdl.handle.net/21.15107/rcub_machinery_2740 ER -
@article{ author = "Milovanović, Aleksa and Sedmak, Aleksandar and Čolić, Katarina and Tatić, Uroš and Đorđević, Branislav R.", year = "2017", abstract = "Total hip replacement implants represent permanent implants and require large bone and cartilage removal during implantation. Revision would affect joint capability to sustain load, which makes this procedure irreversible. During exploitation, i.e. everyday activities, implants are subjected to dynamic loading. Thereby, these structures are prone to failure by fatigue. Highest stress states on total hip replacement implants are present in the neck area of the implant, which is a position of crack initiation. Under loading the implant neck exhibits tension and compression zones. Crack initiation in the neck side under tension would lead to crack opening and certain fracture. Implants are examined by experimental and numerical methods. The most common numerical method is finite element method (FEM) used to simulate different loading conditions. In this paper numerical analysis of stress distribution in the neck area is performed on a specific implant. Four numerical models are created in order to show how certain design solutions influence the stress distribution in the neck area.", publisher = "Institut za ispitivanje materijala, Beograd", journal = "Structural Integrity and Life", title = "Numerical analysis of stress distribution in total hip replacement implant", pages = "144-139", number = "2", volume = "17", url = "https://hdl.handle.net/21.15107/rcub_machinery_2740" }
Milovanović, A., Sedmak, A., Čolić, K., Tatić, U.,& Đorđević, B. R.. (2017). Numerical analysis of stress distribution in total hip replacement implant. in Structural Integrity and Life Institut za ispitivanje materijala, Beograd., 17(2), 139-144. https://hdl.handle.net/21.15107/rcub_machinery_2740
Milovanović A, Sedmak A, Čolić K, Tatić U, Đorđević BR. Numerical analysis of stress distribution in total hip replacement implant. in Structural Integrity and Life. 2017;17(2):139-144. https://hdl.handle.net/21.15107/rcub_machinery_2740 .
Milovanović, Aleksa, Sedmak, Aleksandar, Čolić, Katarina, Tatić, Uroš, Đorđević, Branislav R., "Numerical analysis of stress distribution in total hip replacement implant" in Structural Integrity and Life, 17, no. 2 (2017):139-144, https://hdl.handle.net/21.15107/rcub_machinery_2740 .