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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
 


Finite element analysis of the behavior of elliptical cracks emanating from the orthopedic cement interface in total hip prostheses
Ali Benouis, Mohammed El Sallah Zagane, Abdelmadjid Moulgada, Murat Yaylaci, Djafar Ait Kaci, Merve Terzi, Mehmet Emin Özdemir and Ecren Uzun Yaylaci

 
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
 

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