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Stress enhancement ...
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Sprakel, JorisHarvard University, Cambridge,USA,SEAS
(author)
Stress enhancement in the delayed yielding of colloidal gels
- Article/chapterEnglish2011
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LIBRIS-ID:oai:DiVA.org:liu-125205
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-125205URI
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https://doi.org/10.1103/PhysRevLett.106.248303DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-48669URI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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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.
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Lindström, Stefan BHarvard University, Cambridge, USA,SEAS(Swepub:miun)stelin2200
(author)
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Kodger, T. E.Harvard University, Cambridge, USA,SEAS
(author)
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Weitz, D. A.Harvard University,SEAS
(author)
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Harvard University, Cambridge,USASEAS
(creator_code:org_t)
Related titles
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In:Physical Review Letters106:24, s. 248303-0031-90071079-7114
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