CUED Publications database

Effects of solution exposure on the combined axial-shear behaviour of unidirectional CFRP rods

Scott, P and Lees, JM (2012) Effects of solution exposure on the combined axial-shear behaviour of unidirectional CFRP rods. Composites Part A: Applied Science and Manufacturing, 43. pp. 1599-1611. ISSN 1359-835X

Full text not available from this repository.

Abstract

In fibre reinforced polymer (FRP) prestressed concrete applications, an FRP tendon must sustain high axial tensile stresses and, if cracks occur, additional dowel forces. The tendon may also be exposed to solutions and so the combined axial-shear stress performance after long-term environmental exposure is important. Experiments were conducted to investigate the combined axial-shear stress failure envelope for unidirectional carbon FRP tendons which had been exposed to either water, salt water or concrete pore solution at 60 °C for approximately 18 months. The underlying load resisting mechanisms were found to depend on the loading configuration, restraint effects and the initial stress state. When saturated, CFRP tendons are likely to exhibit a reduced shear stiffness. However, the ultimate limit state appeared to be fibre-dominated and was therefore less susceptible to reductions due to solution uptake effects. © 2012 Elsevier Ltd. All rights reserved.

Item Type: Article
Uncontrolled Keywords: A. Carbo fibre B. Environmental degradation D. Mechanical testing E. Thermosetting resin
Subjects: UNSPECIFIED
Divisions: Div D > Structures
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:29
Last Modified: 08 Dec 2014 02:39
DOI: 10.1016/j.compositesa.2012.03.027