Application of 𝑇₃₃-Stress to Predict the Lower Bound Fracture Toughness for Increasing the Test Specimen Thickness in the Transition Temperature Region

Figure 2

The TST effect on the normalized 𝑇₃₃ of the nonstandard 3PB specimen at the specimen midplane (𝑊=25mm, 𝑎/𝑊=0.5; 𝜈=0.3) [16] recompiled in the log-log form.

(a)

(b)