Author(s)

R. DaForno & R. Basso

Abstract

This paper analyses the high velocity impact against a cable in order to define the limits of the impacting particle velocity to avoid the sudden cut of the cable. The mathematical model is based on the characteristic method in order to describe the nonlinear 3D dynamics of the cable (large deformations). The impacting object is considered as a point mass. The global system, cable- impacting mass, is described trough a quasi-linear system of hyperbolic partial differential equation with boundary condition of inertial type (the particle motion). The impact is assumed perfectly anelastic and the cable longitudinal constitutive stress-strain relationship follows the Young's law. The solution algorithm is developed on the characteristic plane trough a discrete gr

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