Figure 4
From: Necking and notch strengthening in metallic glass with symmetric sharp-and-deep notches
Illustrations of the effect of notch sharpness.
(a) Notched MG structures investigated. Left Panel: a = 30 nm and b = 15 nm and Right panel: a = 6 nm and b = 15 nm, the same notch size in Fig. 1. (b) Snapshots show the failure behaviors for the notched MGs with blunt and sharp notches, respectively. The color in (b) indicates the atomic local shear strain. (c) The true stress–strain curves for MGs with sharp and blunt notches, respectively. The blue line indicates the maximum strength of unnotched MG σT. (d) The trend of stress concentration factor at the notch root during deformation up to the onset of the SB formation. The stress concentration factor is defined as the ratio of the stress at the notch root over the stress on the reduced cross-section.
