Paper Title:
Fatigue Life Evaluation of ERW Joint in the Pipe Using Monte-Carlo Simulation
  Abstract

The optimum welding condition for the input power was experimentally determined using the ERW simulator. The optimum condition derived from the nondestructive defect inspection and impact energy was the heat input power of 250kW with normalizing treatment at 900oC. In order to evaluate the fatigue life of ERW pipes, fatigue crack growth test for base metal and weld joint with the optimum condition were performed. As stress intensity factor range ( DKS) increased, the fatigue crack propagation rate (da/dN) of the weld joint became slower than that of the base metal. The fatigue life of ERW pipe was statistically estimated using Monte-Carlo simulation with the standard deviation of material constants (C and m) of the Paris law in the specimen. The fatigue life at failure probability PF = 50% is 2.3×105 cycle. Since the fatigue test of pipe in field has a lot of difficulties due to cost, equipment and time, the life derived from the simulation was identified using the common durability simulation software.

  Info
Periodical
Key Engineering Materials (Volumes 297-300)
Edited by
Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
Pages
3-9
DOI
10.4028/www.scientific.net/KEM.297-300.3
Citation
C. M. Kim, J. K. Kim, C. S. Kim, "Fatigue Life Evaluation of ERW Joint in the Pipe Using Monte-Carlo Simulation", Key Engineering Materials, Vols. 297-300, pp. 3-9, 2005
Online since
November 2005
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: Young Pyo Kim, Cheol Man Kim, Woo Sik Kim, Kwang Seon Shin
Abstract:A clear understanding of fatigue properties for the pipeline steel and its weld is important to provide information for pipeline design...
303
Authors: Ivica Čamagić, Nemanja Vasić, Predrag Živković, Aleksandar Radović, Tamara Sedmak, Meri Burzić, Zijah Burzić
Abstract:Analysis of fracture toughness of high-strength low alloyed steel, Nionikral-70, welded joint constituencies, subjected to variable load is...
121
Authors: B. Glaser, Nenad Gubeljak, Jožef Predan
Abstract:Components and structures exposed to elastic dynamic loading respond with different surface or bulk material changes which could be monitored...
109