The Adhesive Bonded Technique Study Of The Joint Between The FRP Pipe And The Steel Or The Steel Part

Along with the extensive application of the FRP pipe , the engineering of the FRP pipe that construction, maintain, rush to repair would be more and more. Aim at the shortage in actual application that the FRP pipe flange joint with the steel pipe and steel parts, in consideration of the special advantage of the adhesive boned joint, Put forward the method that the steel flange adhesive boned steel pipe or steel part after the steel flange instead the FRP pipe flange, or the FRP pipe adhesive boned direct with the steel and steel part, it can reduce the stress concentration problem that cause from the different of the descend speed and the Hot bulge or freeze coefficient in the applied process. Thus reduce the damage number and the maintenance costs of the piping, so this method can have the greatly actual application value.This paper introduces kinds, advantages and shortcomings, designing principles, and its failure properties of adhesive bonded joints and mechanical fastened joints of FRP pipe. Carry technique research of the FRP pipe and steel pipe or steel spare parts.Pass the analysis to various adhesive-bonded joint, aim at the actual application of adhesive-bonded joint within FRP pipe and steel pipe or spare parts Choice strengthen adhesive-bonded joint inside and outside to apply. An analytical model was developed using the first-order laminated anisotropic plate theory to determine the stress and strain distributions within FRP and steel pipe joint under combined torsional and tensile loading. Taking advantage of the axisym metric nature of torsional and tensile loads about the pipe centralaxis, the equilibrium equations for the three-components joint system consisting of coupling, adhesive and pipe were setup based on the displace mentrelation. The adhesive peel stress and shears tress were calculated using the models for 54°and 26°filament-woundpipes, and good correlations were found when comparing these results with actual results.Aim at the influence that different material of the adhesive boned joint and the different surface processing method connect the strength ,We chose the surface processing method that spray sand to remove the rust add wreath oxygen to prepare draw the paint when construction operation. We chose the adhesive that belong to not saturated resin to test after we analysis and research the ceng and the function...