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Internal–external circumferential crack behaviour in the cement layer of total hip replacement
Author(s) -
Oshkour A. A.,
Abu Osman N. A.,
Yau Y. H.,
Tarlochan F.,
Pramanik S.,
Wan Abas W. A. B.
Publication year - 2013
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/ffe.12026
Subject(s) - materials science , cement , stress intensity factor , composite material , intensity (physics) , layer (electronics) , stress (linguistics) , surface layer , internal stress , fracture mechanics , optics , linguistics , philosophy , physics
This study aimed to investigate crack behaviour at the internal and external surfaces of the cement layer in total hip replacement. A three‐dimensional model of the femur with the cemented prosthesis was developed and analysed. Cracks were placed on the internal, external and both internal and external surfaces of the cement layer. Stress intensity factors were measured during gait. Results revealed that the stress intensity factors modes I and III were the most dominant in the crack propagation in the cement layer. The domain of mode I was the medial and lateral sides of the cement layer. Meanwhile, the domain of mode III was the anterior and posterior sides of the cement layer. The stress intensity factor and distance from the distal end indicated an inverse relationship. The internal and external cracks had no significant interaction. Moreover, stress intensity factors at the external surface of the cement layer were higher than those on the internal surface.