Applicability of the Modified Ritchie-Knott-Rice Failure Criterion to Examine the Feasibility of Miniaturized Charpy Type SE(B) Specimens

Figure 1

failure criterion, which predicts the onset of cleavage fracture when the crack-opening stress , measured at a distance from the crack-tip equal to four times the crack-tip opening displacement (CTOD) (hereinafter denoted as ), exceeds a critical value [3, 13].