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 language | English (US) |
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Pages (from-to) | 625-634 |
Number of pages | 10 |
Journal | Journal of Testing and Evaluation |
Volume | 44 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2016 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Keywords
- Concrete characterization
- Concrete fracture
- Inverse analysis