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Pipe Stiffness Prediction of GRP Flexible Pipe
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 Title & Authors
Pipe Stiffness Prediction of GRP Flexible Pipe
Lee, Young-Geun; Kim, Sun-Hee; Park, Joon-Seok; Yoon, Soon-Jong;
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In this paper, we present the load-deflection behavior of GRP pipes. GRP buried pipes are widely used in construction in the advantage of their superior mechanical and physical characteristics such as high chemical resistance, high corrosion resistance, right weight, smooth surface of the pipe, and cost effectiveness from soil-structure interaction. To design flexible pipes to be buried underground, it should be based on the ASTM D2412(2010). When applying ASTM D 2412(2010) to the design, pipe stiffness(PS) must be predetermined by the parallel-plate test which requires tedious and laborious working process. To overcome such problems, the finite element simulations for finding the load-deflection behavior of the GRP flexible pipes is installed at UTM testing machine. In the finite element simulations, basic data, such as the modulus of elasticity of the material and cross-sectional dimension, is used. From the investigation, we found that the difference between experimental result and analytical prediction is less than 15% when the pipe deflected 3% and 5% of its vertical diameter although the pipe material is not uniform across the cross-section.
Flexible pipe;GRP;Pipe deflection;Finite element analysis;
 Cited by
Characteristics of Structural Behavior of Unplasticized Polyvinyl Chloride (PVC-U) Pipe Buried Underground, Journal of the Korean Society for Advanced Composite Structures, 2015, 6, 4, 16  crossref(new windwow)
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