Progressive failure of FRP composites for construction - CICE 2012

Proceedings of CICE 2012 6th International Conference on FRP Composites in Civil Engineering
Rome, Italy, 13-15 June 2012

The purpose of this paper is to provide a review of and observations on progressive failure of Fiber-Reinforced-Polymer (FRP) composites of interest to civil and infrastructure construction applications. The primary reason for this is that although FRP composites have,over the last 25 years, successfully penetrated niche markets in civil engineering applications one of the most frequently heard concerns from designers is their discomfort with the “ductility” of these composites and the structures built or reinforced with them. If we wish to expand the market for FRP applications in construction we must as a community address this issue in greater depth. One approach is to use system-wide, structural, progressive failure behavior of the composite material itself to dissipate internal strain energy in-lieu of theelasto-plastic behavior seen in metallic materials. Specific applications of FRP composites in construction where progressive failure mechanisms have been considered are reviewed.
These include FRP profiles, FRP reinforcing bars, externally bonded FRP or mechanically fastened FRP strengthening strips, and FRP column wraps.

Keywords: Crashworthiness, Ductility, Energy Dissipation, Progressive Failure, Pultruded Profiles, Rebars, Strengthening, Wrapping.