THE IMPACT OF THE STEEL CORD CONSTRUCTION ON ITS DECLINE OF BREAKING FORCE AFTER FATIGUE TEST IN BIDIRECTIONAL BENDING CONDITIONS

摘要

In the paper the influence of bidirectional bending on breaking force of steel cord has been assessed. Tests were carried out under laboratory conditions on three types of cord. It was found that bidirectional bending of steel cord cause the deterioration of strength properties and weakening of steel cord as a result of its fatigue. The obtained results may find application in the wire industry while implementing the new production technologies of steel cord.