Fatigue and Cyclic Load Testing
topic
Fatigue testing subjects fabric or yarn specimens to repeated load-unload cycles at defined stress amplitudes and frequencies, monitoring progressive strength degradation, dimensional change, and eventual failure; accelerated protocols compress service life equivalents into laboratory timeframes using elevated stress or frequency.
Role
Predicts long-term structural reliability of safety-critical textiles including parachute canopies, climbing ropes, seat belts, and medical implants where cyclic mechanical loading is the dominant failure mechanism.