Issue 9, 2016

Elastic cavitation and fracture via injection


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

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Article information

Article type
18 Aug 2015
22 Jan 2016
First published
25 Jan 2016
This article is Open Access
Creative Commons BY license

Soft Matter, 2016,12, 2557-2566

Elastic cavitation and fracture via injection

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

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