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001-es BibID:	BIBFORM082253
035-os BibID:	(cikkazonosító)9147 (WOS)000351181400002 (Scopus)84944402384
Első szerző:	Domokos Gábor
Cím:	Universality of fragment shapes / Gábor Domokos, Ferenc Kun, András Árpád Sipos, Tímea Szabó
Dátum:	2015
ISSN:	2045-2322
Megjegyzések:	The shape of fragments generated by the breakup of solids is central to a wide variety of problems ranging from the geomorphic evolution of boulders to the accumulation of space debris orbiting Earth. Although the statistics of the mass of fragments has been found to show a universal scaling behavior, the comprehensive characterization of fragment shapes still remained a fundamental challenge. We performed a thorough experimental study of the problem fragmenting various types of materials by slowly proceeding weathering and by rapid breakup due to explosion and hammering. We demonstrate that the shape of fragments obeys an astonishing universality having the same generic evolution with the fragment size irrespective of materials details and loading conditions. There exists a cutoff size below which fragments have an isotropic shape, however, as the size increases an exponential convergence is obtained to a unique elongated form. We show that a discrete stochastic model of fragmentation reproduces both the size and shape of fragments tuning only a single parameter which strengthens the general validity of the scaling laws. The dependence of the probability of the crack plan orientation on the linear extension of fragments proved to be essential for the shape selection mechanism.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Scientific Reports. - 5 : 1 (2015), p. 1-6. -
További szerzők:	Kun Ferenc (1966-) (fizikus) Sipos András Árpád Szabó Tímea
Pályázati támogatás:	OTKA K84157 OTKA TÁMOP-4.2.2.A-11/1/KONV-2012-0036 TÁMOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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