Suppressing Delamination Failure Mode in Concrete Beams Strengthened with Short CFRP Laminates
| Autor: | S. Mani Abrishamchian, Hayder A. Rasheed, Adil Al Tamimi, Saud Al Subaie, Mohammad Nassajy |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Materials science
business.industry Mechanical Engineering General Mathematics Delamination Structural engineering Bending Shear (sheet metal) Cracking Flexural strength Mechanics of Materials Shear strength Shear stress General Materials Science Composite material business Beam (structure) Civil and Structural Engineering |
| Zdroj: | Mechanics of Advanced Materials and Structures. 18:194-200 |
| ISSN: | 1537-6532 1537-6494 |
| Popis: | This study is intended to examine the suppression of delamination failure for short CFRP laminates using wide transverse CFRP U-Wrap anchors. To achieve this objective, four beams were designed, fabricated, cast, and tested. Two beams serve as control specimens with different concrete strength and primary steel yield strength. The other two beams serve as strengthened specimens where they are twins of the two control beams and they both have identical flexural and anchorage strengthening reinforcement. The beams were tested in three-point bending. The control specimens (beam 1 and 2) failed in flexure. The capacity of these beams was 33 kN and 25 kN respectively. Beams 1FRP and 2FRP failed in vertical shear cracking at the laminate tip due to the shear stress concentration at 56.5 kN and 65 kN respectively. Beam 2FRP was very close to failing in flexure. It was observed that horizontal shear and diagonal shear cracking failure modes have been suppressed by the U anchors due to the intersection of fibers t... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |