FE analysis of the behaviour of microcracks in the cement mantle of reconstructed acetabulum in the total hip prosthesis

Bouiadjra, B. Bachir; Belarbi, A.; Benbarek, Smaïl; Achour, T.; Sérier, B.

doi:10.1016/j.commatsci.2007.02.006

Cited by 26 publications

(14 citation statements)

References 12 publications

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“…The satisfaction of this last property requires some density of porosities. But in mechanical view may be damaging if these microvoids can locally present at the region of stress concentration producing a possible fracture of cement [2]. The stress intensity factor for crack emanating from microvoid is higher than the ordinary crack.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Cavity-Cavity Interaction on the Stress Amplitude in Orthopedic Cement

Zouambi¹,

Sérier²,

Fekirini³

et al. 2013

JBNB

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The presence of porosities in bone cement (polymethylmethacrylate) in total hip prosthesis (THP) cemented is necessary for the diffusion of antibiotics, but it is a critical characteristic of weakening by the effect of stress concentration and the interconnecting pores. The aim of this study was to analyse by the finite element method (FEM), the size influence of micro-cavities in cement assuming the junction cup-bone, and the effect of cavity-cavity interaction on the stress level and distribution in cement according to the human stance defined by the implant position axis compared to that of the cup.

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Section: Introductionmentioning

confidence: 99%

Effect of the Cavity-Cavity Interaction on the Stress Amplitude in Orthopedic Cement

Zouambi¹,

Sérier²,

Fekirini³

et al. 2013

JBNB

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“…THR is applied to ease pain and to restore normal function of the hip joint . The femoral prostheses in THR can be fixed in a host bone as cemented, cementless or partially cemented . The cement layer endures mechanical stresses during daily activities .…”

Section: Introductionmentioning

confidence: 99%

“…Stress intensity factors (SIFs) can be used as parameters of the linear elastic fracture mechanic to analyse the crack behaviour in brittle materials . Additionally, SIFs are effective and accurate tools in studying fatigue crack growth .…”

Section: Introductionmentioning

confidence: 99%

“…SIFs can be measured by analytical, experimental or numerical methods . Previous studies employed finite element analysis (FEA) to measure SIFs and to study crack behaviour in the cement layer of THR . Analysing cracks and measuring SIFs with FEA involve several difficulties, such as singularity at the crack tip or front as well as proper mesh generation for the arbitrary crack geometry.…”

Section: Introductionmentioning

confidence: 99%

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Internal–external circumferential crack behaviour in the cement layer of total hip replacement

Oshkour

Osman

Yau

et al. 2013

Fatigue Fract Eng Mat Struct

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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.

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“…The femoral head was modelled as In order to approach the reality, force F=2400N is applied to the centre of the femoral head ( Figure 6). It corresponds to a three times of average weight of man (80kg) 5 . These conditions of loading are considered as the extreme case of an effort which the prosthesis can support.…”

Section: Geometric Material's Definition and Loading Conditionsmentioning

confidence: 99%

Numerical Modelling of Crack Propagation in Cement PMMA: Comparison of Different Criteria

2016

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Modelling of a crack propagating through a finite element mesh under mixed mode conditions is of prime importance in fracture mechanics. In this paper, three different crack growth criteria and the respective crack paths prediction in the cement mantle of the reconstructed acetabulum are compared. The maximum tangential stress (MTS) criterion, the minimum strain energy density (MSED) criterion and the new general fracture criterion based on the energy release rate G(θ) are investigated using advanced finite element technique. The displacement extrapolation technique (DET) is used, to obtain the SIFs at crack tip. Several examples are presented to show the robustness of the numerical techniques. The effect of the inclusions and cavities on the crack propagation in cement orthopedic are highlighted.

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FE analysis of the behaviour of microcracks in the cement mantle of reconstructed acetabulum in the total hip prosthesis

Cited by 26 publications

References 12 publications

Effect of the Cavity-Cavity Interaction on the Stress Amplitude in Orthopedic Cement

Effect of the Cavity-Cavity Interaction on the Stress Amplitude in Orthopedic Cement

Internal–external circumferential crack behaviour in the cement layer of total hip replacement

Numerical Modelling of Crack Propagation in Cement PMMA: Comparison of Different Criteria

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