Identification of Nonlinear Elastic Bending Behavior for Cable Simulation

This paper investigates the identification of nonlinear elastic behavior of real cables, namely a bending stiffness characteristic, based on real cable experiments. To this end, two approaches are considered: a data-based approach, where an inverse problem is formulated, and a model-based approach, utilizing the static equilibrium equations for Cosserat rods. Both methods are applied to measured data of real cables, and the obtained results are compared and discussed. Our proposed methods contribute to the development of realistic constitutive models for cable simulation within the framework of nonlinear rod models.