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Stress enhancement ...
Stress enhancement in the delayed yielding of colloidal gels
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- Sprakel, Joris (author)
- Harvard University, Cambridge,USA,SEAS
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- Lindström, Stefan B (author)
- Harvard University, Cambridge, USA,SEAS
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- Kodger, T. E. (author)
- Harvard University, Cambridge, USA,SEAS
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- Weitz, D. A. (author)
- Harvard University,SEAS
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(creator_code:org_t)
- 2011
- 2011
- English.
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In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 106:24, s. 248303-
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Networks of aggregated colloidal particles are solidlike and can sustain an applied shear stress while exhibiting little or no creep; however, ultimately they will catastrophically fail. We show that the time delay for this yielding decreases in two distinct exponential regimes with applied stress. This behavior is universal and found for a variety of colloidal gel systems. We present a bond-rupture model that quantitatively describes this behavior and highlights the role of mesoscopic structures. Our result gives new insight into the nature of yielding in these soft solid materials.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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