Forward and inverse analysis of concrete fracture using the disk-shaped compact tension test

A. N. Amirkhanian, D. W. Spring, J. R. Roesler, G. H. Paulino

Research output: Contribution to journalArticlepeer-review

Abstract

A new concrete fracture geometry is presented, which can quantify multiple fracture properties from a single specimen test. The disk-shaped compact tension (DCT) geometry allows specimens to be fabricated from laboratory cylinders or field cores. The DCT fracture test characterizes the concrete's critical stress intensity factor, KIC, critical crack-tip opening displacement, CTODc, and initial fracture energy, Gf, as well as the specimen-dependent total fracture energy, GF. The DCT-based fracture properties have the same experimental variation as the single-edge notched beam test. The experimentally derived fracture parameters were implemented into a cohesive zone model, which enabled estimation of concrete tensile strength from field-extracted cores.

Original languageEnglish (US)
Pages (from-to)625-634
Number of pages10
JournalJournal of Testing and Evaluation
Volume44
Issue number1
DOIs
StatePublished - Jan 2016

Keywords

  • Concrete characterization
  • Concrete fracture
  • Inverse analysis

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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