Paper Title:
Fluid Structure Interaction Analysis on Wall Thinned Pipes
  Abstract

The wall thinning due to erosion, corrosion and flow accelerated corrosion is one of critical issues in nuclear industry. To secure against loss of integrity of pipes with a flaw, ASME Code Section III and Code Case N-597 etc have been used in design and operating stages, respectively. However, despite of their inherent conservatisms, it may reach unanticipated accidents due to degradation at local region. In this paper, a new evaluation scheme is suggested to estimate load-carrying capacities of wall thinned pipes. At first, computational fluid dynamics analyses employing steady-state and incompressible flow are carried out to determine pressure distributions in accordance with conveying fluid. Then, the discriminate pressures are applied as input condition of structural finite element analyses to calculate local stresses at the deepest point. A series of combined analyses were performed for different fluid flow velocities as well as d/t, Rm/t and l/t ratios. The efficiency of proposed scheme was proven from comparison with conventional analyses results and it is recommended to consider the fluid structure interaction effect for exact integrity evaluation.

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
670-673
DOI
10.4028/www.scientific.net/KEM.321-323.670
Citation
Y. S. Chang, K. H. Song, S. M. Lee, J. B. Choi, Y. J. Kim, "Fluid Structure Interaction Analysis on Wall Thinned Pipes", Key Engineering Materials, Vols. 321-323, pp. 670-673, 2006
Online since
October 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Saeid Hadidi-Moud, Christopher E. Truman, David John Smith
Abstract:Assessment of the integrity of structures such as reactor pressure vessels is a critical issue in relevant industries. In a full integrity...
2278
Authors: Yoon Suk Chang, T.R. Lee, Jae Boong Choi, Young Jin Kim
Abstract:The influences of stress triaxiality on ductile fracture have been emphasized to explain the geometry independent fracture resistance...
2403
Authors: Yoon Suk Chang, Dae Geun Cho, Sang Min Lee, Jae Boong Choi, Young Jin Kim, Poong Hwan Chun, Jae Youn Kong
Abstract:The purpose of this paper is to investigate principles of levitation and restitution of blowing nozzle prior to fabricating a prototype of...
2483
Authors: Yasuhiro Kanto, S. Yoshimura
Abstract:This paper demonstrates sensitive analyses of probabilistic fracture mechanics (PFM) for reactor pressure vessel (RPV) during pressurized...
878
Authors: M. Foroutan, M.E. Aalami-Aleagha, S. Pirmoradi
Abstract:In this paper effect of joint groove geometry on the residual stresses in circumferentially butt-welded still pipes is investigated by the...
229