Fragmentation of shells

Details Fragmentation of shells Fragmentation of shells

2004-02-18

arxiv.org/abs/cond-mat/0402461v1

Phys. Rev. Lett. 93, 035504 (2004)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages in revtex format, 5 figures are included

Scientific paper

10.1103/PhysRevLett.93.035504

We present a theoretical and experimental study of the fragmentation of closed thin shells made of a disordered brittle material. Experiments were performed on brown and white hen egg-shells under two different loading conditions: impact with a hard wall and explosion by a combustible mixture both give rise to power law fragment size distributions. A three-dimensional discrete element model of shells is worked out. Based on simulations of the model we give evidence that power law fragment mass distributions arise due to an underlying phase transition which proved to be abrupt for explosion and continuous for impact. We demonstrate that the fragmentation of closed shells defines a new universality class of fragmentation phenomena.

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