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Process / pipelineFracture mechanics

Uchanganuzi wa Ufa wa Griffith

Nadharia ya ufa ya Griffith inaeleza jinsi kasoro ndogo au nyufa katika vifaa zinavyokua bila kudhibitiwa, na kusababisha uharibifu wa ghafla. Iliyoundwa na Alan A. Griffith mnamo 1921 kupitia majaribio kwenye nyuzi za kioo, nadharia hii inalinganisha nishati ya elastic inayotolewa na ukuaji wa ufa dhidi ya nishati ya uso inayohitajika kuunda nyuso mpya za nyenzo. Inatabiri kuwa vifaa vinashindwa kwa mafadhaiko mbali chini ya nguvu zao za kinadharia kwa sababu ya mkusanyiko wa mafadhaiko karibu na kasoro zilizopo.

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Vyanzo

  1. Griffith, A. A. (1921). The phenomena of rupture and flow in solids. Philosophical Transactions of the Royal Society A, 221, 163-198. link
  2. Irwin, G. R. (1957). Analysis of stresses and strains near the end of a crack traversing a plate. Journal of Applied Mechanics, 24(3), 361-364. link
  3. Anderson, T. L. (2017). Fracture Mechanics: Fundamentals and Applications (4th ed.). CRC Press. ISBN: 978-1-4987-8644-3

Jinsi ya kunukuu ukurasa huu

ScholarGate. (2026, June 3). Griffith's Theory of Brittle Fracture and Crack Growth. ScholarGate. https://scholargate.app/sw/manufacturing/griffith-fracture-mechanics

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Imerejelewa na

ScholarGateGriffith Fracture Mechanics (Griffith's Theory of Brittle Fracture and Crack Growth). Imepatikana 2026-06-18 kutoka https://scholargate.app/sw/manufacturing/griffith-fracture-mechanics · Seti ya data: https://doi.org/10.5281/zenodo.20539026