A clamped cantilever beam test was developed to determine the fatigue crack propagation rate of the CoCr alloy/PMMA cement interface at high crack tip phase angles. A combination of finite element and experimental methods was used to determine the fatigue crack growth rates of two different CoCr alloy/PMMA cement surfaces. A crack tip phase angle of 69 deg was found, indicating that loading at the crack tip was mixed-mode with a large degree of in-plane shear loading. The energy required to propagate a crack at the interface was much greater for the plasma-sprayed CoCr surface when compared to the PMMA-precoated satin finish Both interface surfaces could be modeled using a Paris fatigue crack growth law over crack propagation rates of to [S0148-0731(00)01306-6]
Fatigue Fracture of the Stem–Cement Interface With a Clamped Cantilever Beam Test
Contributed by the Bioengineering Division for publication in the JOURNAL OF BIOMECHANICAL ENGINEERING. Manuscript received by the Bioengineering Division August 15, 1999; revised manuscript received July 10, 2000. Associate Technical Editor: C. H. Turner.
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Heuer, D. A., and Mann, K. A. (July 10, 2000). "Fatigue Fracture of the Stem–Cement Interface With a Clamped Cantilever Beam Test ." ASME. J Biomech Eng. December 2000; 122(6): 647–651. https://doi.org/10.1115/1.1322035
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