Mass-velocity correlation in impact fragmentation

Gergo Pál, Imre Varga, F. Kun

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We study the impact fragmentation of two- and three-dimensional disordered solids in a discrete element model of heterogeneous brittle materials focusing on the spatial distribution and mass-velocity correlation of fragments. Our calculations revealed that depending on the energy of impact the breakup process can have two different outcomes: at low impact energy the sample gets damaged, however, to achieve fragmentation the imparted energy has to surpass a critical value. Based on large scale computer simulations we show that the position of fragments inside the original body with respect to the impact site determines their mass and velocity in the final state. A novel relation of the mass and velocity of fragments is revealed: In the damage phase the mass and velocity of fragments are strongly correlated, however, in the fragmented phase correlation emerge solely for large fragments. The correlation function decays as a power law with a universal exponent in an excellent agreement with recent experimental findings.

Original languageEnglish
Title of host publicationKey Engineering Materials
Pages141-144
Number of pages4
Volume592-593
DOIs
Publication statusPublished - 2014
Event7th International Conference on Materials Structure and Micromechanics of Fracture, MSMF 2013 - Brno, Czech Republic
Duration: Jul 1 2013Jul 3 2013

Publication series

NameKey Engineering Materials
Volume592-593
ISSN (Print)10139826

Other

Other7th International Conference on Materials Structure and Micromechanics of Fracture, MSMF 2013
CountryCzech Republic
CityBrno
Period7/1/137/3/13

Fingerprint

Brittleness
Spatial distribution
Computer simulation

Keywords

  • Fragmentation
  • Mass distribution
  • Mass-velocity correlation

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Pál, G., Varga, I., & Kun, F. (2014). Mass-velocity correlation in impact fragmentation. In Key Engineering Materials (Vol. 592-593, pp. 141-144). (Key Engineering Materials; Vol. 592-593). https://doi.org/10.4028/www.scientific.net/KEM.592-593.141

Mass-velocity correlation in impact fragmentation. / Pál, Gergo; Varga, Imre; Kun, F.

Key Engineering Materials. Vol. 592-593 2014. p. 141-144 (Key Engineering Materials; Vol. 592-593).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pál, G, Varga, I & Kun, F 2014, Mass-velocity correlation in impact fragmentation. in Key Engineering Materials. vol. 592-593, Key Engineering Materials, vol. 592-593, pp. 141-144, 7th International Conference on Materials Structure and Micromechanics of Fracture, MSMF 2013, Brno, Czech Republic, 7/1/13. https://doi.org/10.4028/www.scientific.net/KEM.592-593.141
Pál G, Varga I, Kun F. Mass-velocity correlation in impact fragmentation. In Key Engineering Materials. Vol. 592-593. 2014. p. 141-144. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.592-593.141
Pál, Gergo ; Varga, Imre ; Kun, F. / Mass-velocity correlation in impact fragmentation. Key Engineering Materials. Vol. 592-593 2014. pp. 141-144 (Key Engineering Materials).
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