Extreme Value Analysis of Dimple Size on Ductile Fracture Surface Associated with Fracture Behavior of Tensile Specimens

Extreme value analysis has been applied to clarify the statistical nature of the ductile fracture surface associated with the fracture behavior of JIS SS 490 steel. Both the notched tensile specimens with different notch acuity and the unnotched specimens were employed to obtain a wide range of stress triaxiality. The ductile fracture surfaces were composed of variously sized dimples. The dimple size distributions were well expressed by the...