Prediction of long and short time rheological behavior in soft glassy materials

TL;DR

This paper introduces an effective time approach that predicts both long and short-term rheological behaviors of soft glassy materials by leveraging aging-dependent relaxation times, enabling superposition across diverse aging regimes.

Contribution

The study presents a novel effective time method that accurately predicts rheological behavior in soft glassy materials over practical time scales, accommodating various aging dynamics.

Findings

Effective time approach successfully predicts superposition in diverse aging regimes.

Method applies to molecular and spin glasses.

Predicts both long and short-term rheological behavior.

Abstract

We present an effective time approach to predict long and short time rheological behavior of soft glassy materials from experiments carried out over practical time scales. Effective time approach takes advantage of relaxation time dependence on aging time that allows time-aging time superposition even when aging occurs over the experimental timescales. Interestingly experiments on variety of soft materials demonstrate that the effective time approach successfully predicts superposition for diverse aging regimes ranging from sub-aging to hyper-aging behaviors. This approach can also be used to predict behavior of any response function in molecular as well as spin glasses.