![Figure 2: Right Knee Traction-free macrocrack Bridging zone Microcrack zone What is the Cohesive Zone Model? Definition : ,[object Object],Figure 2: Righ ,[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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Semelhante a Presentation For Fracture Mechanics
Semelhante a Presentation For Fracture Mechanics (20)
Presentation For Fracture Mechanics
- 1. Cohesive Modeling of Fatigue crack growth and retardation By , Aniket Suresh Waghchaure. Graduate Student, Mechanical Engineering Department, Michigan Tech University,Houghton.
- 4. Cohesive Law with Unloading-Reloading Hysteresis T = K-δ, if δ < 0 = K+ δ, if δ >0 Loading Incremental stiffness Unloading Incremental stiffness Fig 1 Cyclic Cohesive Law with unloading –reloading hysteresis. (Nguyen , Cohesive models of Fatigue crack growth and stress corrosion cracking,2000)
- 7. Crack closure effect in Polymers Fig 7 Crack Closure Effect in polymers (A. S. Jones Life extension of self-healing polymers with rapidly growing fatigue cracks,Dec 2006)
- 10. The cohesive relation is a Material Property
- 11. Predict fatigue using a cohesive relation that is sensitive to applied cycles, overloads, stress ratio, load history.
- 14. The unloading-reloading hysteresis of the cohesive law simulates simply dissipative mechanisms such as crystallographic slip and frictional interactions between asperities.
- 17. Thank You