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4. Initiation & Propagation
6. Cleavage Mechanism I. Brittle transgranular fracture
A. BCC and HCP metals only
18. Ductile Mechanism Ductile Fracture in all metals
25. Fracture Modes
26. Dimple Formation: Mode I
27. Dimple Formation: Mode II
30. Failure Stresses Shear stresses produce plastic deformation
Ductile Failure: Shear Stress Driven
2. Normal stresses tend to open up cavities, cracks
Brittle Failure : Normal Stress Driven
31. What Kind of Fracture?
32. What Kind of Fracture?