A project specification required a CTOD
of 0.35mm to be met at -10-degreeC in a thick section steel weld.
, besides the crack pinning mechanism, if one of the nanoparticles' dimension is greater than the CTOD
, crack deflection and bridging might take place.
Caption: FIGURE 5: Typical KI, CTOD
, and CMOD versus effective crack extension plot.
NACE and CTOD
tests have been carried out with a wide range of its products.
Han  studied the effect of constraint on the critical CTOD
of X65 steel using a Gurson type void model.
Specific topics include carrying capacity prediction of steam turbine rotors with operation damage, laser generated crack-like features developed for assessment of fatigue threshold behavior, and precracking and CTOD
testing of welds.
Discussing the manufacturing method, Martin Ishkanian, Stream-Flo's Corporate Quality Manager and Metallurgist, said, "Castings are often the best choice because of the requirements on materials, CTOD
, fracture mechanics, etc.
Hermetically sealed cans and special packaging were used to ship the electrodes to Alaska for CTOD
(crack tip opening displacement) testing.
The monthly estimates described previously are generated from this database by a simple, monthly summing command (SUM COST FOR S_DATE >= CTOD
)'04/01 /8 8' .AND.
The crack tip opening displacement (CTOD
or [[delta].sub.c]) is the value of [delta] at the crack tip (i.e., x=0).
Ceron, "Fracture mechanisms of CTOD
samples of submerged and flux cored arc welding," Theoretical and Applied Fracture Mechanics, vol.