Research Article
Applicability of the Modified Ritchie-Knott-Rice Failure Criterion to Examine the Feasibility of Miniaturized Charpy Type SE(B) Specimens
Figure 12
Fracture surfaces and load versus crack-mouth opening displacement diagrams of the 3t SE(B) specimens (S55C, 20°C). Pop-in correlated with cleavage mechanism was observed for specimen id 1. However, large stable crack extension before cleavage fracture was observed for specimen id 2, as predicted from the failure criterion. Note that mm does not correspond to the final fracture.
(a) |
(b) |