Material Fracture (Ductile vs. Brittle Fracture)

Introduces ductile and brittle fracture. Describes the macroscopic appearance of both types of cracking. Describes the microscopic mechanism that are responsible for each type. Briefly covers fractography and shows cup-and-cone fracture for ductile materials and chevron markings for brittle materials. Introduces the ductile to brittle transition. Gives example of Liberty Cargo Ships in WWII.