root crack

root crack

[′rüt ‚krak]
(metallurgy)
A crack in the weld or in the heat-affected zone at the root of the weld.
References in periodicals archive ?
The joint with the open root crack was analyzed, the crack lengths being considered in arithmetic progression, with the ratio 0.
However, determined different values of stress intensity factors for both crack sizes suggest that these three gear pairs do not have the same resistance to tooth root crack growth.
Exclusion criteria included root caries, root cracks, root resorption or other anatomical defects, teeth with incomplete apical development and those too small to produce the test specimen (about 10 mm in length).