Finite element analysis of the behaviour of crack emanating from microvoid in cement of reconstructed acetabulum

• Published in: Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 457; no. 1; pp. 385 - 391
• Main Authors: Benbarek, S., Bouiadjra, Bachir, Achour, T., Belhouari, M., Serier, B.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 25.05.2007; Elsevier
• Subjects: Cement; Condensed matter: structure, mechanical and thermal properties; Cracks; Deformation and plasticity (including yield, ductility, and superplasticity); Exact sciences and technology; Finite element method; Mechanical and acoustical properties of condensed matter; Mechanical properties of solids; Microvoid; Physics; Reconstructed acetabulum; Stress intensity factors; Finite element method; Cracks; Reconstructed acetabulum; Stress intensity factors; Microvoid; Cement; Crack formation; Acetabulum; Cavitation; Inclination; Stress distribution; Cements; Crack tip
• ISSN: 0921-5093; 1873-4936
• DOI: 10.1016/j.msea.2006.12.087

In this study, the finite element method is used to analyse the behaviour of crack emanating from microvoid and ordinary crack in cement of reconstructed acetabulum by computing the stress intensity factor at the crack tip. In order to predict the crack initiation location, the stress distribution around the microvoid is computed under three load cases. From stress results, one can note that there is a great risk of crack initiation in radial direction. From stress intensity factors computation, this same orientation is the dangerous because the mode I stress intensity factor is the higher in this direction. From comparison results on can see clearly that crack emanating from microvoid is most dangerous, and the difference in the stress intensity factors between the two cracks change with the crack inclination and this difference is constant for three load cases.