Page 182 - Handbook of Materials Failure Analysis
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178 CHAPTER 7 Investigation of failure behavior of tubular components
FIGURE 7.15
Contour of von Mises equivalent stress (MPa) in the axially cracked fuel-clad specimen (with
length of 50 mm and a 0 /W value of 0.5) with an applied displacement of 30 mm on the
mandrel.
FIGURE 7.16
Contour of von Mises equivalent plastic strain in the axially cracked fuel-clad specimen (with
length of 50 mm and a 0 /W value of 0.5) for an applied displacement of 30 mm on the
mandrel.
load line displacement is measured with the COD gauges, it is not necessary to cor-
rect the data for the machine compliance. The η and γ factors depend upon a/W ratios
of the specimens and these are taken from Refs. [21–24]. The load-normalization
technique has been used to estimate the crack extension during loading of the cracked
fuel pin specimens.
