This paper establishes a range of possible creep model correlations based on uniaxial constant stress creep data and variable stress creep laws. It is shown that the model behaves as an analogue which can be used to solve the differential equations governing the deformation of the prototype. The most general correlations hold for time-hardening materials where creep data can be flitted by a stress index. The least general correlations hold for strain-hardening materials whose data can only be fitted to a function of stress. Elastic strains and variable loads are included in the analysis.
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