The effect of FRP stiffness variation on FRP debonding from concrete

T. Mohammadi, B.L. Wan, Jianguo Dai

Research output: Unpublished conference presentation (presented paper, abstract, poster)Conference presentation (not published in journal/proceeding/book)Academic researchpeer-review

Abstract

In wet lay-upfiberreinforced polymer (FRP)bonded concrete members,fibersheets are appliedbyhand and the cured FRPs do not have constant properties.Therefore, the behaviour of FRPbonded concrete specimens varies among specimenseventhesame materials are used.In thisresearch, a mathematical method is used to predict the variationofload versus deflectionresponses of FRP bonded concrete specimens subjected toMode I andMode II loading due tothe variation of FRP properties.In an effort to effectively model the variation ofFRPproperties,a randomwhitenoise using a one-dimensional standard Brownian motion is added to thegoverning equationsofFRP debonding from concrete subjected toMode I andMode II loading,yielding a stochastic differential equation.The bounds of load vs. deflection responses with 95%probability are found for different experimental tests. The variationsofFRP stiffness for thesetests are also determined by a systematic method.
Original languageEnglish
Publication statusPublished - 2012
EventInternational Conference on FRP Composites in Civil Engineering [CICE] -
Duration: 1 Jan 2012 → …

Conference

ConferenceInternational Conference on FRP Composites in Civil Engineering [CICE]
Period1/01/12 → …

Keywords

  • Brownian motion
  • Concrete
  • FRP stiffness
  • ModeI
  • Mode II
  • White noise

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