Abstract
This paper is dedicated to studying crazing under cyclic bending with axial loading. The tests were carried out on a special testing equipment. The influence of such factors as the bending radius, the axial load, and the number of bending cycles was investigated. The concentration of crazes was determined by optical microscopy. Moreover, the optical properties of POFs were studied by means of optical spectroscopy and light scattering . As a result, the dependences of craze concentration on the bending radius, axial load, and the number of bending cycles were obtained. The magnitude of irreversible changes was shown to be proportional to the density of the crazes nucleated upon deformation of the light guides.
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