Relation Between Crack Velocity and Crack Arrest

Initiation fracture toughness is a material parameter well established to predict crack initiation. An improved fracture design for security component could be obtained in predicting crack arrest. Arrest fracture toughness can be used for that purpose. However, this parameter although studied for a long time [1] is still questionable, even though a standard test procedure was developed in [2]. The influence of dynamic effects on crack arrest are often invoked and the assessment of arrest toughness under static analysis could lead to a dependence with specimen geometry [2].