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Stress enhancement ...
Stress enhancement in the delayed yielding of colloidal gels
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- Sprakel, Joris (författare)
- Harvard University, Cambridge,USA,SEAS
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- Lindström, Stefan B (författare)
- Harvard University, Cambridge, USA,SEAS
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- Kodger, T. E. (författare)
- Harvard University, Cambridge, USA,SEAS
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- Weitz, D. A. (författare)
- Harvard University,SEAS
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(creator_code:org_t)
- 2011
- 2011
- Engelska.
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Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 106:24, s. 248303-
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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