The specimens were fixed between two parallel plates and a sine torque was applied at 1.59 Hz frequency. Test temperature was 20°C Figure 4.
Las condiciones de ensayo establecidas consistieron en fijar la muestra entre dos platos paralelos, posteriormente aplicar un torque senosoidal de carga controlada a una frecuencia de 1,59 Hz y a una temperatura de 20 °C figura 4.