Fracture Failure Modes in Fiber-Reinforced Polymer Systems Used for Strengthening Existing Structures

The development of promising new high-performance materials, such as composite materials made fibers in a polymeric resin (fiber-reinforced polymer, or FRP), has transformed the structural rehabilitation and upgrade industry for buildings infrastructure. Conventional construction techniques (e.g., strengthening with externally bonded steel plates, known beton plaqués, steel/concrete jackets) have been supplanted by innovative ones. most important emerging involve use composites quick effective option repairing upgrading existing structures. Several issues regarding FRP–substrate interaction, mainly related to brittle failure mechanisms due fracture phenomena, remain focus great deal research. This paper presents an overview debonding behavior its predictive modelling FRP systems.