In-situ experiment on long-term behaviour of GFRP pipes under permanent bending

The present study aims at studying the long-term behaviour of composites (GFRP) subjected to permanent bending. The specificity of this study largely rests on the original conditions of in situ ageing of the specimens within an experimental structure of elastic gridshell, built in 2006 and disassembled in 2014. This prototype was made of rectilinear tubes which were elastically deformed into a 3D stable shape. The structural members constituted...