Constituent analysis of stress memory in semicrystalline polyurethane

What is it about?

This paper tells about the quantitative analysis of total stress and strain components in a stimuli responsive smart polymeric system, namely memory polymers (MPs). Stress-memory behavior is analytically studied to predict the definite memory stress by an unprecedented approach.

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Why is it important?

A constitutive model based on phase transition is used to quantify the individual stress components during the thermo-mechanical process. In contrast to earlier models, a novel approach is shown to find the "relaxed modulus", which is important for the prediction of pure memory stress and in MPs. This approach could help researchers to engineer the products more precisely in multidisciplinary arenas where the controllable stimuli responsive stress is needed.