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Effect of cavity-defects interaction on the mechanical behavior of the bone cement
Zouambi, Leila,Serier, Boualem,Benamara, Nabil Techno-Press 2014 Advances in materials research Vol.3 No.1
The presence of cavities in the bone cement has a great importance for the transport of antibiotics, but its existence in this material can lead to its weakening by notch effect. The aim of this study allows providing a physical interpretation to the cavities interconnection by cracks observed experimentally. The most important stress of Von Mises is localized at the cement/bone interface near the free edge which is the seat of stress concentration. The presence and interaction of cavities in this site concentrate, by notch effect, stresses which tend to the tensile fracture stress of Bone cement.