Abstract
The creep estimation using the time-temperature superposition principle has been considered by many researchers, they researched about the creep estimation with a single load. If you measure the physical properties of materials, it is just necessary to evaluate the viscoelastic property under the simple load. However in a practical scene, the multi-stage load was applied on the materials. Therefore, it is needed to calculate creep behavior with the response by a complicated load, but they weren't researched enough. Then, we considered about the applicability of the “Boltzmann's superposition principle” on the estimation of creep behavior and carried out the creep test with the multi-stage load conditions and estimated with the data from the single load creep behavior. The results of creep estimation were good agreement with the experimental creep data, and the little errors between estimated and experimental data were observed. It is, therefore, the estimation method using the linear visco-elastic theory and the “Boltzmann's superposition principle” can be applied to the estimation of creep behavior.
