According to the time-stress equivalence principle, the creep compliance vs. time curves at five different stress levels are determined and shifted along logarithmic time axis to get a master compliance curve at a given reference stress level.

• 运用时间－应力等效原理，可以由较高应力水平下较短时间的试验数据，通过沿时间轴的平移得到较低应力水平下材料的长期性能。