Paper Title:
Two Methods for Determination of Fatigue Crack Propagation Limit Curves and their Application for Different Materials
  Abstract

There are different documents containing fatigue crack propagation limit or design curves and rules for the prediction of crack growth. The research work aimed to characterise the fatigue crack propagation resistance of different materials using limit curves and determination of limit curves under different loading conditions, based on statistical analysis of test results and the Paris-Erdogan law. With the help of the characteristic values of threshold stress intensity factor range (Kth), two constants of Paris-Erdogan law (C and n), fatigue fracture toughness (Kfc) or fracture toughness (KIc) two reliable method can be proposed. The limit curves calculated by both methods represent a compromise of rational risk (not the most disadvantageous case is considered) and striving for safety (uncertainty is known).

  Info
Periodical
Key Engineering Materials (Volumes 345-346)
Edited by
S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim
Pages
395-398
DOI
10.4028/www.scientific.net/KEM.345-346.395
Citation
J. Lukács, "Two Methods for Determination of Fatigue Crack Propagation Limit Curves and their Application for Different Materials ", Key Engineering Materials, Vols. 345-346, pp. 395-398, 2007
Online since
August 2007
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Price
$32.00
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