Paper
Fracture processes in acrylic bone cement containing barium sulphate dispersions

https://doi.org/10.1016/0141-5425(79)90035-9Get rights and content

Abstract

This paper describes the effects of dispersions of barium sulphate (BaSO4) particles on crack nucleation and growth in a commercially available surgical acrylic bone cement. A simple model is presented which is based on the nucleation and growth of voids around each BaSO4 particle. The model assumes that the local stress at a particle depends on the strain applied to the material, whereas the overall stress on the system depends on the volume fraction of particles. The effects of saline solution and blood serum on crack propagation are described.

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Cited by (17)

  • Enhancing effects of radiopaque agent BaSO<inf>4</inf> on mechanical and biocompatibility properties of injectable calcium phosphate composite cement

    2020, Materials Science and Engineering C
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    This reinforcing feature of BaSO4 agrees with the results of several previous studies. For example, some studies showed that the addition of BaSO4 led to an improvement in fatigue crack propagation resistance of the acrylic bone cements [34,35]. Another reported that the addition of BaSO4 resulted in a decrease in the tensile strength, but did not affect the fracture toughness and improved the crack propagation resistance [7].

  • Mechanical performance of acrylic bone cements containing different radiopacifying agents

    2002, Biomaterials
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    Actually, as it can be observed in Fig. 11b, in some cases the PMMA beads were fractured, but in other instances it was observed that the crack propagated preferentially through the interbead matrix, surrounding the PMMA beads. The results obtained in this study are in good agreement with those reported in the literature for a commercial cement (Simplex, 10% BaSO4), where an increase in the fatigue crack propagation resistance is attributed to the presence of the radiopacifying agent [9,42]. The same positive effect is also observed when barium sulphate is replaced by zirconium dioxide in this cement [43].

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