000014225 001__ 14225
000014225 005__ 20161115100145.0
000014225 04107 $$aeng
000014225 046__ $$k2016-08-21
000014225 100__ $$aBbosa, Lawrence
000014225 24500 $$aModelling impact damage and breakage of a particle bed using SPH and DEM

000014225 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014225 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014225 506__ $$arestricted
000014225 520__ $$2eng$$aThis work aims to elucidate the impact breakage of a bed of particles in an environment similar to that found in comminution devices. Smoothed Particle Hydrodynamics (SPH) and the Discrete Element Method (DEM) are used to simulate the impact of rigid steel spheres on the particle bed. With SPH, continuum damage mechanics is used to simulate the extent of damage and (brittle) failure in the bed. For DEM, a MohrCoulomb law is applied to represent cohesive inter-particle forces and calculate the relevant failure criteria. The numerical simulations are conducted concurrently with laboratory experiments in which the stress and energy absorbed during the impact event is measured by a load cell. The rock progeny are also measured to assess the level of breakage. The SPH and DEM simulations are calibrated against experiment and subsequently demonstrated to be a valuable means of studying the stress distributions which initiate crack propagation and failure.

000014225 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014225 653__ $$a

000014225 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014225 720__ $$aBbosa, Lawrence
000014225 8560_ $$ffischerc@itam.cas.cz
000014225 8564_ $$s129331$$uhttps://invenio.itam.cas.cz/record/14225/files/PO.SM05-1.01.246.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2119, code PO.SM05-1.01.246
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000014225 962__ $$r13812
000014225 980__ $$aPAPER