Mechanische Eigenschaften von Polyesterfasern bei kurzzeitiger Zugbeanspruchung, 1. Aufbau eines Meßplatzes für schnelle Zugbeanspruchung

The stress-strain behaviour of filament yarns has been determined by variation of strain rates from 10^?1 up to 10⁵%/s. Strain rates up to 10%/s are obtained with a tensile testing machine. The higher strain rates up to 10⁵%/s are obtained with an apparatus using a falling weight by variation of the height of fall and the length of the yarn. Because of the high-speed impact and time of strain/influence down to 10^?4 s together with the variation of the height of fall between 0,6 and 166 cm a profound discussion of errors is necessary.