Paper XII (i) On Flat Belt Slip

Abstract Slip measurements on a thick flat belt reveal that the slip is much higher than can be predicted with classical creep theory. By including shear creep (and appropriate material data) the deviation to some extent can be explained. Obviously other mechanisms are present as well. The behaviour in the seating and unseating regions changes the direction of the frictional forces in these regions on the driver pulley, which violates the assumptions in the creep and shear theories. When considering creep, shear, seating/unseating and compliance, measurements and theory fit very well.