Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Numerical investigation of particle breakage as applied to mechanical crushing: Part I, Single-particle breakage
Center for Rock Instability & Seismicity Research, Northeastern University, Shenyang.
Center for Rock Instability & Seismicity Research, Northeastern University, Shenyang.
Luleå tekniska universitet.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
Visa övriga samt affilieringar
2001 (Engelska)Ingår i: International Journal of Rock Mechanics And Mining Sciences, ISSN 1365-1609, E-ISSN 1873-4545, Vol. 38, nr 8, s. 1147-1162Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

A numerical approach to particle breakage is applied using the Rock Failure Process Analysis code, RFPA (super 2D) . The numerical tool is validated by simulating the Brazilian test with a two-dimensional disk sample. Then two irregularly shaped particles with an exact geometry and exact mechanical properties are numerically modelled to investigate their breakage behaviour under unconfined and confined loading conditions. The numerical results indicate that the dominant mode of failure is catastrophic splitting and progressive crushing, which mainly depends on the loading conditions with respect to confinement. The analysis of the load-displacement curves obtained from the simulations suggests a brittle-ductile transition between the two cases. The lateral constraint increases the initial stiffness and the maximum breakage strength of the particle. Most of the energy released during the failure process comes from the crushing of highly stressed areas, particularly, in the vicinity of the contact points where a crushed zone forms. It is also found that the particle shape governs the breakage strength in addition to the material properties themselves, and that the heterogeneity of the particles governs the fracture propagation paths

Ort, förlag, år, upplaga, sidor
2001. Vol. 38, nr 8, s. 1147-1162
Nationell ämneskategori
Annan samhällsbyggnadsteknik
Forskningsämne
Gruv- och Berganläggningsteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-11400DOI: 10.1016/S1365-1609(01)00075-2ISI: 000175449300006Scopus ID: 2-s2.0-0035739706Lokalt ID: a5b91340-a8bc-11dc-9057-000ea68e967bOAI: oai:DiVA.org:ltu-11400DiVA, id: diva2:984350
Anmärkning
Validerad; 2001; 20071212 (ysko)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2018-07-10Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextScopus

Personposter BETA

Lindqvist, Per-Arne

Sök vidare i DiVA

Av författaren/redaktören
Lindqvist, Per-Arne
Av organisationen
Geoteknologi
I samma tidskrift
International Journal of Rock Mechanics And Mining Sciences
Annan samhällsbyggnadsteknik

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 50 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf