Creep and Time-Temperature superposition (TTS)
Creep testing involves applying a static stress for a specified time and measuring the resulting deformation. The recovery test involves releasing the stress and monitoring how the material specimen relaxes. Such a creep experiment can be carried out at different consecutive temperatures in a single test. Relaxation time and permanent strain can accurately describe the stability of materials under a specific stress or strain. Thanks to Dyna+’s TTS function, based on the time-temperature equivalence principle, this data can be used to predict long-term material creep. Relatively short experiments can be used to accurately classify how the performance of finished products will age over their expected service life.
