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Fracture mechanics of plate debonding

Fracture mechanics of plate debonding
Fracture mechanics of plate debonding
The study has shown that the phenomena of plate debonding can be studied by means of a fracture-mechanics approach, which obviates the need for a finite element analysis which would have dubious validity in the presence of infinite stress concentrations.

It has been necessary to produce a modified form of Branson’s method to allow the calculation of the beam stiffness when the section is partially cracked and when subjected to an axial load imposed by the FRP plate.

Hutchinson’s interface breakdown model has proved to be a very useful tool for the study of the debonding of FRP plates from concrete structures. More work remains to be done to study the importance of the various parameters that influence the result. Comparisons with experimental data in the literature are being undertaken.
debonding, fracture mechanics, FRP, strain energy
Achintha, M.
8163c322-de6d-4791-bc31-ba054cc0e07d
Burgoyne, C.
5a90ba6f-f862-48b8-8273-f44b18bbb2dd
Achintha, M.
8163c322-de6d-4791-bc31-ba054cc0e07d
Burgoyne, C.
5a90ba6f-f862-48b8-8273-f44b18bbb2dd

Achintha, M. and Burgoyne, C. (2007) Fracture mechanics of plate debonding. 8th International Conference of Fiber-Reinforced Polymer Reinforcement for Reinforced Concrete Structures (FRPRCS-08), Greece. 16 - 18 Jul 2007. 10 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

The study has shown that the phenomena of plate debonding can be studied by means of a fracture-mechanics approach, which obviates the need for a finite element analysis which would have dubious validity in the presence of infinite stress concentrations.

It has been necessary to produce a modified form of Branson’s method to allow the calculation of the beam stiffness when the section is partially cracked and when subjected to an axial load imposed by the FRP plate.

Hutchinson’s interface breakdown model has proved to be a very useful tool for the study of the debonding of FRP plates from concrete structures. More work remains to be done to study the importance of the various parameters that influence the result. Comparisons with experimental data in the literature are being undertaken.

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More information

e-pub ahead of print date: 17 July 2007
Venue - Dates: 8th International Conference of Fiber-Reinforced Polymer Reinforcement for Reinforced Concrete Structures (FRPRCS-08), Greece, 2007-07-16 - 2007-07-18
Keywords: debonding, fracture mechanics, FRP, strain energy
Organisations: Infrastructure Group

Identifiers

Local EPrints ID: 369135
URI: https://eprints.soton.ac.uk/id/eprint/369135
PURE UUID: 4ee00033-a636-4529-8d4a-8e7706777cd4

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Date deposited: 25 Sep 2014 13:41
Last modified: 18 Jul 2017 01:40

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