Non-destructive evaluation of the interface in reinforced concrete using phase measurement interferometry

Masoud Ghandehari*, Sridhar Krishnaswamy, Surendra P Shah

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


Studying the behavior of steel and concrete as a composite is of fundamental importance to the understanding of the cracking of reinforced concrete structures. In this article, a technique leading toward the development of a constitutive model for the interaction of steel and concrete is described. Experiments are based on pull-out specimens, where the shear stress and the two displacement components at the interface are measured. Phase Measurement Interferometry is used for accurate surface displacement measurement, and crack growth detection. The normal stress is then deduced using the measured crack length and crack opening displacements, along with a fracture mechanics based numerical simulation.

Original languageEnglish (US)
Pages (from-to)137-144
Number of pages8
JournalMaterials Research Society Symposium - Proceedings
StatePublished - Jan 1 1998
EventProceedings of the 1997 MRS Fall Meeting - Boston, MA, USA
Duration: Dec 1 1997Dec 4 1997

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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