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Issue 9, 2016

Elastic cavitation and fracture via injection

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Abstract

The cavitation rheology technique extracts soft materials mechanical properties through pressure-monitored fluid injection. Properties are calculated from the system's response at a critical pressure that is governed by either elasticity or fracture (or both); however previous elementary analysis has not been capable of accurately determining which mechanism is dominant. We combine analyses of both mechanisms in order to determine how the full system thermodynamics, including far-field compliance, dictate whether a bubble in an elastomeric solid will grow through either reversible or irreversible deformations. Applying these analyses to experimental data, we demonstrate the sensitivity of cavitation rheology to microstructural variation via a co-dependence between modulus and fracture energy.

Graphical abstract: Elastic cavitation and fracture via injection

Supplementary files

Article information


Submitted
18 Aug 2015
Accepted
22 Jan 2016
First published
25 Jan 2016

This article is Open Access

Soft Matter, 2016,12, 2557-2566
Article type
Paper

Elastic cavitation and fracture via injection

S. B. Hutchens, S. Fakhouri and A. J. Crosby, Soft Matter, 2016, 12, 2557 DOI: 10.1039/C5SM02055G

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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