Effect of test frequency on the in vitro fatigue life of acrylic bone cement

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Abstract

The goal of the present work was to test the hypothesis that test frequency, f, does not have a statistically significant effect on the in vitro fatigue life of an acrylic bone cement. Uniaxial constant-amplitude tension-compression fatigue tests were conducted on 12 sets of cements, covering three formulations with three very different viscosities, two different methods of mixing the cement constituents, and two values of f (1 and 10 Hz). The test results (number of fatigue stress cycles, Nf) were analyzed using the linearized form of the three-parameter Weibull equation, allowing the values of the Weibull mean (NWM) to be determined for each set. Statistical analysis of the lnNf data, together with an examination of the NWM estimates, showed support for the hypothesis over the range of f used. The principal use and explanation of the present finding are presented. © 2002 Elsevier Science Ltd. All rights reserved.

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Lewis, G., Janna, S., & Carroll, M. (2003). Effect of test frequency on the in vitro fatigue life of acrylic bone cement. Biomaterials, 24(6), 1111–1117. https://doi.org/10.1016/S0142-9612(02)00437-4

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