We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Modelling of Moisture Sorption by Cfrp Rebars with Vinylester Matrix
Summary
The moisture absorption behavior of carbon fiber-reinforced polymer rebars with a vinylester matrix was characterized experimentally and modeled mathematically. The study found significant anisotropy in moisture diffusion that conventional structural models fail to capture accurately.
The results of experimental investigation and modelling of moisture sorption by CFRP rebars and vinylester matrix are presented. Experimental values of the rebar diffusion coefficients essentially differ from those predicted using structural approach. Essential anisotropy of sorption process in longitudinal and transverse directions is observed. Quasi three phase model is suggested for description of the CFRP rebar sorption. The model is based on consideration of sorption process of the diffusion character in the composite consisted of two phases: resin and microplastic, which includes fibres and fibre-resin interphase. The suggested model describes the experimental sorption data quite satisfactorily and explains high anisotropy effect.