Abstract
The use of digital image correlation (DIC) as a fracture mechanics tool is described, for two projects currently underway. The goal of the first project is to examine the bond between carbon fiber reinforced polymers (CFRP) and concrete substrates. The second project involves the interfacial transition zone (ITZ) of plain concrete, and the softening and fracture behavior of this region. For both projects, DIC allows for precise measurement of the surface displacements of the deforming materials. The resulting strain data are higher in resolution than is possible with other experimental techniques. For both projects, the DIC results are being used to determine bond constitutive laws, which will be the basis for fracture mechanics studies of the materials.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 109-121 |
| Number of pages | 13 |
| Journal | Engineering Fracture Mechanics |
| Volume | 74 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - Jan 2007 |
Funding
We would like to thank the National Science Foundation (NSF grant CMS-0332356, Program Director P. Balaguru) for supporting this work. We would also like to recognize Nathan Tregger and Sandy Yoon, students at ACBM, for their help in data collection and analysis in the interfacial fracture project.
Keywords
- Debonding
- Fracture
- Image correlation
- Interface
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering