Deformation and fracture mechanics of engineering materials
Updated to reflect recent developments in our understanding of deformation and fracture processes in structural materials. This completely revised reference includes new sections on isostress analysis, modulus of rupture, creep fracture micromechanicsms, and many more.
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There is an important connection between the stress-intensity correction factors
given in Figs. 8.7/2 and 8.7/'. Note that as a/2c approaches 0.5, Q approaches 2.5
, where \/\IQ equals 2/tt, which is the solution for an embedded circular flaw or a
semicircular surface flaw. An embedded elliptical or semielliptical surface flaw
will grow such that a/2c always increases to a limiting value of 0.5. (For the
semielliptical surface flaw, the equilibrium allc is closer to 0.36, because an
additional K ...
An approximate solution may be given by where a c t 1.12 3a Q ira sec— - 2t KA
~ 1.12(3a)vW2 (8-27) maximum stress-intensity condition along elliptical surface
at A depth of elliptical flaw half width of elliptical flaw plate thickness surface flaw
correction at A stress concentration effect at A elliptical flaw correction = f(a/2c)
finite panel width correction accounting for relatively large a/t ratio (recall Eq. 8-
22) At this point, it is informative to compare the stress-intensity factor K and the ...
Weibull3 accounted for the stress and crack length dependence of the crack
growth rate by assuming the FCP rate to be dependent on the net section stress
in the component. Paris4 postulated that the stress intensity factor — itself a
function of stress and crack length — was the overall controlling factor in the FCP
process. This postulate appears reasonable, since one might expect the
parameter K, which controlled static fracture (Chapter 8) and environment
assisted cracking ...
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LibraryThing ReviewUser Review - all4metals - LibraryThing
This is one of the best textbooks on physical metallurgy. My preference is for Dieter's book, but that is because it was the textbook for my physical metallurgy course in graduate school. Hertzberg's book is more modern. Read full review