6-in-1 Heavy-Duty Self-Adhesive Wall Hooks – Waterproof Transparent Hooks

Characterized by significant plastic deformation (e.g., necking in metals) before the material finally separates. The fracture surface often appears rough and fibrous, and the crack propagates slowly and stably.

1. Ductile Fracture: Occurs with significant plastic deformation (e.g., stretching, necking) before the material separates. The fracture surface typically exhibits a fibrous or dimpled appearance (e.g., cup-and-cone fracture in tensile tests).
2. Brittle Fracture: Characterized by little to no plastic deformation, resulting in rapid crack propagation and often catastrophic failure. The fracture surface is typically smooth, flat, and may show features like chevron patterns or cleavage facets.
3. Fatigue Fracture: Caused by repeated or cyclic loading, even at stresses below the material's yield strength. Cracks initiate and grow incrementally, often leaving characteristic "beach marks" or "striations" on the fracture surface.
4. Environmental Fracture: Involves crack initiation and propagation influenced or accelerated by specific environmental factors in conjunction with stress. Examples include stress corrosion cracking (SCC) and hydrogen embrittlement.