Fragmentation model of a rapidly expanding ring with arbitrary cross-section

  title={Fragmentation model of a rapidly expanding ring with arbitrary cross-section},
  author={V. A. Goloveshkin and N. N. Myagkov},
  pages={1219 - 1224}
A model has been proposed to estimate the average number of fragments produced by ductile fracture of a rapidly expanding ring with arbitrary cross-section. The model uses a minimum number of constants characterizing the material properties of the ring. We assume that material of the ring is incompressible with the density ρ and its mechanical behavior obeys the ideal rigid-plastic model with yield stress Y. It is shown that the average number of fragments weakly depends on the cross-sectional… 
1 Citations

Preliminary investigations on dynamic fracture of ductile metals by using electromagnetically driven expanding ring

Experiments referring to dynamic fracture of ductile metals, which is strongly dependent on the loading path, have been performed on the platform of an electromagnetically driven expanding ring. The



Scaling laws for impact fragmentation of spherical solids.

The scaling analysis demonstrates that the exponent of the power law distributed fragment mass does not depend on the impact velocity; the apparent change of the exponent predicted by recent simulations can be attributed to the shifting cutoff and to the existence of unbreakable discrete units.

On the dynamics of localization and fragmentation-IV. Expansion of Al 6061-O tubes

In this series of papers, we investigate the mechanics and physics of localization and fragmentation in ductile materials. The behavior of ductile metals at strain rates of about 4,000–15,000 per

Fragmentation model for expanding cylinder

A two-dimensional energy-based model of fragmentation of rapidly expanding cylinder under plane strain conditions is proposed. The model allows us to estimate the average fragment length and the

Fragmentation of shell cases

  • N. Mott
  • Physics
    Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences
  • 1947
An expression is given for the length of the average fragment, which is shown to depend on the radius and velocity of the case at the moment of break-up, and on the mechanical properties of the metal.

Fragmentation of metal rings by electromagnetic loading

A method is described for performing fragmentation studies on rapidly expanding metal rings. A fast-discharge capacitor system generates magnetic forces which accelerate the rings to maximum radial

Self-organized criticality in fragmenting.

The measured mass distributions of fragments from 26 fractured objects of gypsum, soap, stearic paraffin, and potato show evidence of obeying scaling laws; this suggests the possibility of