Elastic cavitation and fracture via injection

Shelby B. Hutchens, Sami Fakhouri, Alfred J. Crosby

Research output: Contribution to journalArticle

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.

Original languageEnglish (US)
Pages (from-to)2557-2566
Number of pages10
JournalSoft Matter
Volume12
Issue number9
DOIs
StatePublished - Jan 1 2016

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

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