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000015161 084__ $$2WoS$$aPhysics, Multidisciplinary
000015161 1001_ $$0P:(DE-Juel1)VDB61359$$aVliegenthart, G.A.$$b0$$uFZJ
000015161 245__ $$aCompression, crumpling and collapse of spherical shells and capsules
000015161 260__ $$a[Bad Honnef]$$bDt. Physikalische Ges.$$c2011
000015161 300__ $$a045020
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000015161 440_0 $$08201$$aNew Journal of Physics$$v13$$x1367-2630
000015161 500__ $$aRecord converted from VDB: 12.11.2012
000015161 520__ $$aThe deformation of thin spherical shells by applying an external pressure or by reducing the volume is studied by computer simulations and scaling arguments. The shape of the deformed shells depends on the deformation rate, the reduced volume V/V-0 and the Foppl-von Karman number gamma. For slow deformations the shell attains its ground state, a shell with a single indentation, whereas for large deformation rates the shell appears crumpled with many indentations. The rim of the single indentation undergoes a shape transition from smooth to polygonal for gamma similar or equal to 7000(Delta V/V-0)(-3/4). For the smooth rim the elastic energy scales like gamma(1/4) whereas for the polygonal indentation we find a much smaller exponent, even smaller than the exponent 1/6 that is predicted for stretching ridges. The relaxation of a shell with multiple indentations towards the ground state follows an Ostwald ripening type of pathway and depends on the compression rate and on the Foppl-von Karman number. The number of indentations decreases as a power law with time t following N-ind similar to t(-0.375) for gamma = 8 x 10(3) and gamma = 8 x 10(4) whereas for gamma = 8 x 10(5) the relaxation time is longer than the simulation time.
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000015161 7001_ $$0P:(DE-Juel1)130665$$aGompper, G.$$b1$$uFZJ
000015161 773__ $$0PERI:(DE-600)1464444-7$$a10.1088/1367-2630/13/4/045020$$gVol. 13, p. 045020$$p045020$$q13<045020$$tNew journal of physics$$v13$$x1367-2630$$y2011
000015161 8567_ $$uhttp://dx.doi.org/10.1088/1367-2630/13/4/045020
000015161 8564_ $$uhttps://juser.fz-juelich.de/record/15161/files/Vliegenthart_2011_New_J._Phys._13_045020.pdf$$yOpenAccess
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000015161 9131_ $$0G:(DE-Juel1)FUEK505$$bSchlüsseltechnologien$$kP45$$lBiologische Informationsverarbeitung$$vBioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung$$x0
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000015161 9141_ $$y2011
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000015161 9201_ $$0I:(DE-Juel1)ICS-2-20110106$$gICS$$kICS-2$$lTheorie der weichen Materie und Biophysik$$x0
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