Abstract
Fiber-Reinforced Concrete (FRC) toughness parameters, crucial for structural design, can be obtained either by using load–deflection or load–crack opening displacement(COD) relationships. Therefore, determination of midspan-deflection under a given crack width is important in terms of flexural toughness characterization. This research is aimed at determining the relationship between midspan deflection and COD, depending on beam-thickness/fiber length(t/fL) ratio and fiber aspect ratio(d/fL). In this study, load–deflection and load–COD curves from 4-point flexural tests were evaluated in detail to figure out a relationship between the midspan deflections and crack openings. Proposed relationships were verified with the findings from literature and good results were obtained.
| Original language | English |
|---|---|
| Pages (from-to) | 1636-1643 |
| Number of pages | 8 |
| Journal | Mechanics of Advanced Materials and Structures |
| Volume | 26 |
| Issue number | 19 |
| DOIs | |
| Publication status | Published - 2019 |
| Externally published | Yes |
Keywords
- Flexural testing
- crack opening
- flexural toughness
- material characterization
- midspan deflection