Frictional contact behaviors between beam and cylinder under cyclic loading

Finite element results are presented for frictional contact behavior between a beam and rigid cylinder with either a pinned or roller support under cyclic loading. In the case of a pinned support, a new type of rolling contact is initiated and a steady contact state is achieved owing to frictional shakedown; thus, a certain slope of frictional energy dissipation becomes dominant with respect to the ratio of the mean load to load amplitude. A similar contact behavior is observed when the beam thickness varies and maximum frictional energy dissipation occurs at a certain thickness. For the roller support, only a stick region is observed for all ranges of the loading and unloading phases regardless of the beam thickness, which causes no frictional energy dissipation. These contact behaviors are verified through the consideration of a practical grid-to-rod fretting model.