Experimental data for analysing the damping behaviour of non-conductive composite materials

Thus, the composite structure can be designed both to insulate and to act as a damper to avoid for example conductor line galloping. In order to predict the damping of the composite materials, a comprehensive analysis on a representative unidirectional laminate was carried out.

The fibre-direction dependent damping analysis of glass and aramid reinforced epoxy and vinylester, partly reinforced with nanoclay or fibre-hybridized, was investigated using a Dynamic Mechanical Analysis and a Vibrating Beam Testing procedure for five different fibre orientations (0' , 30' , 45' , 60' and 90' ). The focus was on damping behaviour evaluation at low temperatures (-20'C and 0'C) and low vibration frequencies (0.5 Hz, 1 Hz and 2 Hz), in order to represent the environmental conditions of vibrating conductor lines during galloping.