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Cooperativity, fluctuations and inho...

Paulose, Jayson Joseph.

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Cooperativity, fluctuations and inhomogeneities in soft matter.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Cooperativity, fluctuations and inhomogeneities in soft matter./
作者:	Paulose, Jayson Joseph.
面頁冊數:	211 p.
附註:	Source: Dissertation Abstracts International, Volume: 74-10(E), Section: B.
Contained By:	Dissertation Abstracts International74-10B(E).
標題:	Materials science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3567030
ISBN:	9781303186622

Cooperativity, fluctuations and inhomogeneities in soft matter.
Paulose, Jayson Joseph.

Cooperativity, fluctuations and inhomogeneities in soft matter. - 211 p.

Source: Dissertation Abstracts International, Volume: 74-10(E), Section: B.

Thesis (Ph.D.)--Harvard University, 2013.

This item is not available from ProQuest Dissertations & Theses.

This thesis presents four investigations into mechanical aspects of soft thin structures, focusing on the effects of stochastic and thermal fluctuations and of material inhomogeneities.

ISBN: 9781303186622Subjects--Topical Terms:

543314
Materials science.

Cooperativity, fluctuations and inhomogeneities in soft matter.
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245 1 0 $a Cooperativity, fluctuations and inhomogeneities in soft matter.
300 $a 211 p.
500 $a Source: Dissertation Abstracts International, Volume: 74-10(E), Section: B.
500 $a Adviser: David R. Nelson.
502 $a Thesis (Ph.D.)--Harvard University, 2013.
506 $a This item is not available from ProQuest Dissertations & Theses.
506 $a This item must not be sold to any third party vendors.
520 $a This thesis presents four investigations into mechanical aspects of soft thin structures, focusing on the effects of stochastic and thermal fluctuations and of material inhomogeneities.
520 $a First, we study the self-organization of arrays of high-aspect ratio elastic micropillars into highly regular patterns via capillary forces. We develop a model of capillary-mediated clustering of the micropillars, characterize the model using computer simulations, and quantitatively compare it to experimental realizations of the self-organized patterns. The extent of spatial regularity of the patterns depends on the interplay between cooperative enhancement and history-dependent stochastic disruption of order during the clustering process.
520 $a Next, we investigate the influence of thermal fluctuations on the mechanics of homogeneous, elastic spherical shells. We show that thermal fluctuations give rise to temperature- and size-dependent corrections to shell theory predictions for the mechanical response of spherical shells. These corrections diverge as the ratio of shell radius to shell thickness becomes large, pointing to a drastic breakdown of classical shell theory due to thermal fluctuations for extremely thin shells.
520 $a Finally, we present two studies of the mechanical properties of thin spherical shells with structural inhomogeneities in their walls. The first study investigates the effect of a localized reduction in shell thickness---a soft spot---whereas the second studies shells with a smoothly varying thickness. In both cases, the inhomogeneity significantly alters the response of the shell to a uniform external pressure, revealing new ways to control the strength and shape of initially spherical elastic capsules.
590 $a School code: 0084.
650 4 $a Materials science. $3 543314
650 4 $a Condensed matter physics. $3 3173567
650 4 $a Theoretical physics. $3 2144760
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791 $a Ph.D.
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793 $a English
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