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Drilling and coring mechanics: Slip line fields in plasticity, soil and granular mechanics

Drilling and coring mechanics: Slip line fields in plasticity, soil and granular mechanics. Y S Ouyang BIME/NTU Class notes. Frictional surface indentation mode: τ max = 45°-ψ/2 at free surface (ψ: friction angle) . Mohr-Coulomb failure criterion.

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Drilling and coring mechanics: Slip line fields in plasticity, soil and granular mechanics

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  1. Drilling and coring mechanics:Slip line fields in plasticity, soil and granular mechanics Y S Ouyang BIME/NTU Class notes BIME/NTU

  2. Frictional surface indentation mode:τmax = 45°-ψ/2 at free surface (ψ: friction angle) BIME/NTU

  3. Mohr-Coulomb failure criterion BIME/NTU

  4. Meyerhof’s theorySubsurface indentaion: Admissible (R) and inadmissible (L) fields BIME/NTU

  5. Deep channel indentation: Inadmissible (L) and admissible (R) fields BIME/NTU

  6. Force polygon balance based on physical diagram BIME/NTU

  7. Frictionless surface indentation mode in plastic processing of metals:Physical diagram (L) vs. Hodograph (R) BIME/NTU

  8. Sticky surface indentation mode in plastic processing of metals:Physical diagram (L) vs. Hodograph (R) BIME/NTU

  9. Jet sputtering mode BIME/NTU

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