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Determination of stiffness properties of braided composites for the design of a hip prosthesis |
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| Affiliation: | 1. Functional & Applied Biomechanics Section, Rehabilitation Medicine Department, National Institutes of Health, Bethesda, MD 20892, United States;2. The Catholic University of America, Department of Biomedical Engineering, Washington, DC 20064, United States;3. CHRU de Brest, Hôpital Morvan, Service de Médecine Physique et de Réadaptation, 5 Avenue Foch, 29609 Brest Cedex, France;1. Laboratory of Radar Remote Sensing, School of Geosciences and Info-Physics, Central South University, Changsha 410083, PR China;2. State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, PR China |
| Abstract: | This paper describes an experimental procedure used to determine the stiffness properties of two different composites made of braided glass and hybrid carbon–glass fibre reinforced epoxy resin. Tubular specimens manufactured by reinforcing an epoxy resin system with commercial braided preforms were used to determine the elastic constants. All specimens were manufactured using compression moulding technique assisted with internal pressure. The stiffness properties were determined from axial and circumferential strains recorded from strain gauges using internal water pressure tests. Identical types of composite laminates were used to manufacture two prototypes of a composite femoral prosthesis with controlled stiffness. |
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