Abstract
Calibration of material model parameters for the validation of spine finite element (FE) model involves the tuning of parameters in multiple spinal components. A method to automate calibration of spine kinematics was developed in this study, which will find application in subject-specific model development and biomimetic mechanisms. Downhill simplex method was used to find the optimum value of twenty-four material parameters in a single motion segment FE model of cervical spine. The model consisted of two vertebrae and the disc and ligaments in between them. Flexion and extension loading cases and combined flexion-extension loading were considered for the automated model calibration. It was seen from the study that a combined consideration of the loading cases is required to obtain a model calibrated in multiple loading directions as spinal components have different contributions in different loading conditions.
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Natarajan, D., John, J.D., Saravana Kumar, G. (2022). Automated Calibration of Cervical Spine Motion Segment Finite Element Model for Physiological Kinematics. In: Kumar, R., Chauhan, V.S., Talha, M., Pathak, H. (eds) Machines, Mechanism and Robotics. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-0550-5_124
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DOI: https://doi.org/10.1007/978-981-16-0550-5_124
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