Paper Title:
Method of Constraint Loss Correction for CTOD Fracture Toughness under Welding Residual Stress Field
  Abstract

This paper studied the assessment method for welding residual stress effects and constraint loss effects on brittle fracture of structural component subjected to membrane stress. The methodology of CTOD fracture toughness correction for welded joints is proposed from lower to upper ductile-brittle transition temperature region. The methodology is based on the tensile plastic zone size criterion and the equivalent CTOD ratio derived from the Weibull stress criterion. It has been found that the proposed methodology has given the reasonable fracture assessment results.

  Info
Periodical
Materials Science Forum (Volumes 638-642)
Main Theme
Edited by
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
Pages
3931-3936
DOI
10.4028/www.scientific.net/MSF.638-642.3931
Citation
Y. Yamashita, F. Minami, "Method of Constraint Loss Correction for CTOD Fracture Toughness under Welding Residual Stress Field ", Materials Science Forum, Vols. 638-642, pp. 3931-3936, 2010
Online since
January 2010
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Price
$32.00
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