Evaluation of the dynamic-mechanical properties of solids from a cooperative model for stress relaxation

@article{Ek1988EvaluationOT,
  title={Evaluation of the dynamic-mechanical properties of solids from a cooperative model for stress relaxation},
  author={Chung Ek and Ch. H{\"o}gfors and Josef Kub{\'a}t and Mikael Rigdahl and W. Rychwalski and Sven Uggla},
  journal={Rheologica Acta},
  year={1988},
  volume={27},
  pages={477-481}
}
For many solid materials the stress relaxation process obeys the universal relationF = − (dσ/d lnt)max = (0.1 ± 0.01) (σ0 —σi), regardless of the structure of the material. Hereσ denotes the stress,t the time,σ0 the initial stress of the experiment andσi the internal stress. A cooperative model accounting for the similarity in relaxation behaviour between different materials was developed earlier. Since this model has a spectral character, the concepts of linear viscoelasticity are used here to… CONTINUE READING