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Structural Engineering and Mechanics Volume 89, Number 5, March10 2024 , pages 539-547 DOI: https://doi.org/10.12989/sem.2024.89.8.539 |
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Finite element analysis of the behavior of elliptical cracks emanating from the orthopedic cement interface in total hip prostheses |
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Ali Benouis, Mohammed El Sallah Zagane, Abdelmadjid Moulgada, Murat Yaylaci, Djafar Ait Kaci, Merve Terzi, Mehmet Emin Özdemir and Ecren Uzun Yaylaci
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Abstract | ||
This study examines crack behavior within orthopedic cement utilized in total hip replacements through the finite element method. Its main goal is to compute stress intensity factors (SIF) near the crack tip. The analysis encompasses two load types, static and dynamic, applied to a crack starting from the interface between the cement and bone. Specifically, it investigates SIFs under mixed mode conditions during three activities: normal walking, climbing upstairs, and downstairs. The results highlight that a crack originating from a micro-interface under substantial loading can cause cement damage, leading to prosthetic loosening. Stress intensity factors in modes I, II, and III are influenced by the crack tip's orientation and location in the bone cement, with a 90o orientation yielding notably higher values across all three modes. | ||
Key Words | ||
cement; elliptical crack; implant; stress intensity factors | ||
Address | ||
Ali Benouis: Dr. Moulay Tahar, University of Saida, Bp 138 Saida, 20000, Algeria; LMPM, Djillali Liabes University of Sidi Bel-Abbes, Algeria Mohammed El Sallah Zagane: LMPM, Djillali Liabes University of Sidi Bel-Abbes, Algeria Abdelmadjid Moulgada: LMPM, Djillali Liabes University of Sidi Bel-Abbes, Algeria; Ibn Khladoun, University of Tiaret, 14000, Algeria Murat Yaylaci: Biomedical Engineering MSc Program, Recep Tayyip Erdogan University, 53100, Rize, Turkey; Department of Civil Engineering, Recep Tayyip Erdogan University, 53100, Rize, Turkey; Turgut K | ||