000015234 001__ 15234
000015234 005__ 20161115100215.0
000015234 04107 $$aeng
000015234 046__ $$k2016-08-21
000015234 100__ $$aVandenberghe, Nicolas
000015234 24500 $$aFragmentation as an aggregation process

000015234 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015234 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015234 506__ $$arestricted
000015234 520__ $$2eng$$aThe fragmentation of a ring in radial expansion is a benchmark experiment to test our understanding of solid fragmentation. We study a discrete version of it, using necklaces of cohesive spheres as an experimental model. After being communicated an initial radial impulse, the ring breaks and the spheres separate from each other. The attractive forces between the spheres drive an aggregation dynamics that proceed until a final state is reached. The time resolved observation of the fragment size distribution reveals that the process is self similar. This study combines experiments and modeling to offer a new approach to fragmentation dynamics when fracture energy is a relevant quantity and proposes the selection of the fragment size distribution as the results of the aggregation dynamics. The role of inhomogeneities (i.e. material flaws) is also addressed as well as the energetics of the process.

000015234 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015234 653__ $$a

000015234 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015234 720__ $$aVandenberghe, Nicolas
000015234 8560_ $$ffischerc@itam.cas.cz
000015234 8564_ $$s196313$$uhttps://invenio.itam.cas.cz/record/15234/files/TS.SM05-9.05.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2117, code TS.SM05-9.05
.
000015234 962__ $$r13812
000015234 980__ $$aPAPER