Fracture Toughness Test Methods
SC1421-VB: Chevron Notch Fracture Toughness Method
The Chevron Notch (VB) method is used to determine fracture toughness. Specimens with notch configurations A and D as shown in ASTM C1421 will be tested according to the protocols in C1421. C1421 recommends testing a minimum of five specimens to obtain a mean value.
SC1421-SC: Surface Crack in Flexure Fracture Toughness Method
The Surface Crack in Flexure (SC) method is used to determine fracture toughness. A surface crack is generated as shown in ASTM C1421. The specimen is then tested according to the protocols in C1421. C1421 recommends testing a minimum of five specimens to obtain a mean value.