Three-dimensional Stress Characteristics of Pipe Structure

Abstract

This study presents three dimensional stress characteristics of a pipe structure according to the bonded epoxy thickness and material property. For the purpose, first, the internal pupeline was modeled with an epoxy and an additional external pipe. Second, the external force was modeled into a tensile force applying to the pipeline in the axial direction. Third, the geometric boundary condition was given by constraining the displacement. Finally we investigated the effect of t/L(the thickness of epoxy vs. external pipe length) ratio and elasticity mpdulus on the reponses. From the results, it is shown that the pipeline becomes more stable as the modulus elasticity becomes different.al pipe. Second, the external force was modeled into a tensile force applying to the pipeline in the axial direction. Third, the geometric boundary condition was given by constraining the displacement. Finally we investigated the effect of t/L(the thickness of epoxy vs. external pipe length) ratio and elasticity mpdulus on the reponses. From the results, it is shown that the pipeline becomes more stable as the modulus elasticity becomes different.