A deeper understanding in the transverse impact of wire ropes is required to be able to design more and improved structures to reduce the soaring loss of human lifes in traffic accident, by fall of object in mines and the huge amount of rockfalls and landslides ubiquitous all along the rugged geography that we have. By all these reasons, in this thesis are given the mathematical models of the forces in the ends of a steel wire rope and the movement of the body that impact transversely in its middle point. To achieve these objectives, both ends of the wire rope are considered rigidly fixed, reducing its geometry to an unidimensional elastic string and modeling the body as a material point that could be a rock, automobile or any machinery that could fall over a protection barrier, achieving this way a high level of acceleration what in turn induces large displacements and internal stresses...