Paper Title:
A Study on the Low Cycle Fatigue Behavior of the Steel for Shipbuilding Industry
  Abstract

Recently, most of fatigue cracks in ship structures are reported within a few years after delivery. This type of fatigue characteristics cannot be explained adequately by the S-N curve based on high cycle fatigue. Calculation results under critical loading conditions reveal that stress magnitude higher than three times the yield stress occurs at some critical locations. It shows the fatigue cracks are related to low cycle fatigue. But the existing recommended design procedures in maritime industry do not properly cover low cycle fatigue problems. This work represents the first step in an effort to develop a design code that addresses low cycle fatigue problems. Low cycle fatigue test for uniform round specimen made of base/weld metal and for cruciform welded joint are carried out under constant amplitude alternating load, controlled by strain. Strain-cycle curves for the base metal and weld joints show good agreement with published data as well as some code recommended design curves.

  Info
Periodical
Key Engineering Materials (Volumes 297-300)
Edited by
Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
Pages
10-15
DOI
10.4028/www.scientific.net/KEM.297-300.10
Citation
K. S. Kim, B. O. Kim, Y. K. Kim, C. H. Lee, S. W. Lee, "A Study on the Low Cycle Fatigue Behavior of the Steel for Shipbuilding Industry ", Key Engineering Materials, Vols. 297-300, pp. 10-15, 2005
Online since
November 2005
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Price
$32.00
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