Dünndarm, Peritoneum

Lorenz, Erich; Schoen,; Haagen,; Gebele,; Rother,; Stahnke,

doi:10.1007/bf01629993

Cited by 2 publications

(2 citation statements)

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“…This particular value of β together with Eq. (25) gives the critical height of granular material above which the system is unstable. By varying η for a given α, one obtains the evolution of β as a function of η.…”

Section: Granular Loadmentioning

confidence: 99%

Silo Collapse under Granular Discharge

et al. 2015

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We investigate, at a laboratory scale, the collapse of cylindrical shells of radius R and thickness t induced by a granular discharge. We measure the critical filling height for which the structure fails upon discharge. We observe that the silos sustain filling heights significantly above an estimation obtained by coupling standard shell-buckling and granular stress distribution theories. Two effects contribute to stabilize the structure: (i) below the critical filling height, a dynamical stabilization due to granular wall friction prevents the localized shell-buckling modes to grow irreversibly; (ii) above the critical filling height, collapse occurs before the downward sliding motion of the whole granular column sets in, such that only a partial friction mobilization is at play. However, we notice also that the critical filling height is reduced as the grain size d increases. The importance of grain size contribution is controlled by the ratio d= ffiffiffiffiffi Rt p . We rationalize these antagonist effects with a novel fluid-structure theory both accounting for the actual status of granular friction at the wall and the inherent shell imperfections mediated by the grains. This theory yields new scaling predictions which are compared with the experimental results.

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Section: Granular Loadmentioning

confidence: 99%

Silo Collapse under Granular Discharge

et al. 2015

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“…In the example recorded by Lorenz (1948) the rupture was situated in the thinned-out parenchyma of a hydronephrotic kidney. Hcmaturia preceded the rupture by three days, and with the onset of loin Dain the hcmaturia ceased.…”

Section: Case Reportmentioning

confidence: 98%

Spontaneous rupture of the kidney

Shaw

1957

Journal of British Surgery

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Dünndarm, Peritoneum

Cited by 2 publications

References 0 publications

Silo Collapse under Granular Discharge

Silo Collapse under Granular Discharge

Spontaneous rupture of the kidney

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