tailieunhanh - Finite element analysis of fibre-reinforced constitutive formulation of Cadisc-L

The current study measures the mechanical behavior of both natural and the monobloc elastomeric disc prosthesis (CadiscTM-L) by employing a finite element method (FEM) to study the fiber-reinforced constitutive formulation provided in the literature. The three-dimensional geometry was created by computed tomography (CT) scan imaging technique. | Finite element analysis of fibre-reinforced constitutive formulation of Cadisc-L Engineering Solid Mechanics 7 2019 151-162 Contents lists available at GrowingScience Engineering Solid Mechanics homepage esm Finite element analysis of fibre-reinforced constitutive formulation of Cadisc-L Ali Ansaria Hamidreza Ghasemi Bahrasemanb Morteza Mohssenzadehc Mohammad Haghpanahia Kamran Hassania and Hossein Derakhshandehd a Department of Biomechanics Science and Research Branch Islamic Azad University Tehran Iran b Mechanical Engineering Department San Diego State University San Diego 92182 CA USA c Mechanical Engineering Department University of San Diego San Diego 92110 CA USA d Department of Mechanical amp Material Engineering University of Nebraska-Lincoln Lincoln NE 68588 USA A R T I C L EI N F O ABSTRACT Article history The current study measures the mechanical behavior of both natural and the monobloc elastomeric Received 10 October 2018 disc prosthesis CadiscTM-L by employing a finite element method FEM to study the fiber- Accepted 24 December 2018 reinforced constitutive formulation provided in the literature. The three-dimensional geometry was Available online created by computed tomography CT scan imaging technique. Frontal pure rotational sagittal 24 December 2018 Keywords and axial momentum of N m were applied on the top of L3 while the lower half of the L5 was Cadisc-L fixed in all directions. This investigation was performed considering two stages 1 intact L3 L5 Finite element method lumbar spine INT model and 2 Cadisc implemented between L4 and L5 IMP model . The Fibre-reinforced constitutive numerical results for the INT model were validated by experimental data from the literature. formulation Several parameters including the inter-segmental rotation range of motion in flexion-extension axial rotation and lateral bending were analyzed. Our numerical results show that the IMP model has a 50 reduction in the range of motion and a

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