Paper Title:
Microstructural Parameters in the Theory of Critical Distances
  Abstract

The work described below investigates, for the first time, the link between microstructural parameters such as grain size and the length constant L which is known as the critical distance. L is frequently used in the prediction of failure processes such as brittle fracture and fatigue, initiated at stress concentration features such as notches. Values of L were calculated using data from the literature on the effect of short cracks and notches in steels and ceramics. In some cases, simple relationships could be established between L and the grain size, or other microstructural features. Sometimes L was found to be much larger than anything in the microstructure and appeared to be related to the size of the damage zone at failure.

  Info
Periodical
Materials Science Forum (Volumes 567 - 568)
Edited by
Pavel Šandera
Pages
23-28
DOI
10.4028/www.scientific.net/MSF.567-568.23
Citation
David Taylor, 2007, Materials Science Forum, 567-568, 23
Online since
December 2007
Authors
Price
US$ 28,-
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