You are inspecting a crankshaft fracture in which the fracture faces appear relatively smooth with evidence of beach marks. What type of fracture would be the likely diagnosis?
A) brittle
B) ductile
C) fatigue
D) metallurgical defect

Question

Quizplus · Accepted Answer

Fatigue fractures are characterized by the presence of beach marks, which are indicative of the progressive nature of the crack growth under cyclic loading. These marks appear as concentric ridges or patterns on the fracture surface, revealing the history of the crack propagation.

You Are Inspecting a Crankshaft Fracture in Which the Fracture