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http://dx.doi.org/10.9726/kspse.2014.18.5.080

Failure Behavior of T-joint Pipe with Outer Local Wall Thinning under Internal Pressure  

Kim, Soo-Young (UR Interdisciplinary program of Mechanical Engineering, Pukyong Nat’l Univ.)
Nam, Ki-Woo (Materials Science and Engineering, Pukyong National University)
Publication Information
Journal of Power System Engineering / v.18, no.5, 2014 , pp. 80-87 More about this Journal
Abstract
The pipelines are apt to erosion or corrosion because of the high-speed flow of water and steam with high temperatures or high pressures. This study was carried out a finite element analysis (FEA) and an experimental for the fracture behavior of T-joint pipes with local wall thinning under internal pressure. Local wall thinning was machined on the pipes in order to simulate erosion and corrosion of the metal. The configurations of the eroded area included an eroded ratio of d/t=0.80~0.963 and an eroded length of l=25 mm, 50 mm, and 102 mm. Three-dimensional elastic-plastic analyses were also carried out using FEA, which accurately simulates failure behaviors. In regards to the relationship between pressure and eroded, the criterion that indicates what can be used safely under operating pressure and design pressure were obtained from FEA. The FEA results were in relatively good agreement with that of the experiment.
Keywords
Internal pressure; Outer wall thinning; T-joint pipe; FEA; Erosion/corrosion; Failure behavior;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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