Influence of specimen size/geometry on shrinkage cracking of rings

W. Jason Weiss*, Wei Yang, Surendra P. Shah

*Corresponding author for this work

Research output: Contribution to journalArticle

87 Scopus citations

Abstract

This paper presents experimental evidence to show that a size/geometry dependence is observed in the shrinkage cracking behavior of restrained concrete structures. A theoretical model is developed to explain this behavior. First, a solution is presented to compute the stress and displacement fields of an aging, linear, viscoelastic cylinder by assuming that a uniformly distributed shrinkage strain is perfectly restrained in the radial direction at the internal surface of the cylinder. Second, a fracture mechanics failure criterion is implemented to develop time and geometry-dependent tensile stress resistance (strength) curves. Third, this model is used to illustrate the role of specimen size/geometry and material composition on the failure response. Finally, experimentally measured ages of cracking are compared with the theoretical modeling predictions.

Original languageEnglish (US)
Pages (from-to)93-101
Number of pages9
JournalJournal of Engineering Mechanics
Volume126
Issue number1
DOIs
StatePublished - Jan 1 2000

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering

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