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arXiv · 0710.5264

Aging in a Colloidal Glass in Creep Flow: Time-Stress Superposition

Yogesh M. Joshi·G. Ranjith·K. Reddy
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Abstract

In this work, we study ageing behavior of aqueous laponite suspension, a model soft glassy material, in creep. We observe that viscoelastic behavior is time dependent and is strongly influenced by the deformation field; the effect is known to arise due to ageing and rejuvenation. We show that irrespective of strength of deformation field (shear stress) and age, when imposed time-scale is normalized with dominating relaxation mode of the system, universal ageing behavior is obtained demonstrating time-stress superposition; the phenomena that may be generic in variety of soft materials.

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Yogesh M. Joshi, G. Ranjith, K. Reddy. 2008-03-03. Aging in a Colloidal Glass in Creep Flow: Time-Stress Superposition. https://doi.org/10.1103/physreve.77.021501

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