COMPARATIVE-STUDY OF 2 SEMICONTINUOUS MODELS FOR WIRE STRAND ANALYSIS

A study is done to compare two models (that of Hobbs and Raoof from 19 82, and that of Jolicoeur and Cardou from 1996) that use a semicontinu ous approach to predict the behavior of multilayered wire strands unde r axial and bending loads. Theoretical differences and similarities be tween the two models are highlighted. Static stiffness results are obt ained for a seven-wire steel strand and for a multilayered electric ov erhead conductor. For stiffness in tension and torsion, both models ap pear quite equivalent but, for bending stiffness, the Jolicoeur and Ca rdou model agrees better with more classical models and with published experimental results. Recommendations are given to improve prediction s from both models.