Title: ANALYTICAL SOLUTION FOR COHESIVE LAYER MODEL AND MODEL VERIFICATION
Page Range: p.741-752
Author(s): Roy S; Yong Wang
File size: 178K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 13
Issue No: No. 8
Abstract
The objective of this work was to find a solution to the cohesive damaged zone that may occur at the interface between a fibre reinforced polymer plate and concrete structure, when considering elastic deformation in the substrate. The structure incorporates a structural adhesive. The work aims to provide data to be used in civil engineering applications such as infrastructure retrofit and repair. For this purpose, the procedure was that a two-dimensional cohesive layer constitutive model with a prescribed traction-separation law was constructed from basic principles of continuum mechanics. Detailed benchmark comparisons of analytical results with finite element predictions for a double cantilever beam specimen were performed for model verification, and issues related to cohesive layer thickness were investigated. It was observed that the assumption of a rigid substrate in analytical modelling could lead to inaccurate analytical prediction of the cohesive damage zone length. 10 refs.
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