Constitutive Model for Time-Dependent Flows of Shear-Thickening Suspensions.
Physical review letters
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Gillissen, J., Ness, C., Peterson, J., Wilson, H., & Cates, M. (2019). Constitutive Model for Time-Dependent Flows of Shear-Thickening Suspensions.. Physical review letters, 123 (21), 214504. https://doi.org/10.1103/physrevlett.123.214504
We develop a tensorial constitutive model for dense, shear-thickening particle suspensions subjected to time-dependent flow. Our model combines a recently proposed evolution equation for the suspension microstructure in rate-independent materials with ideas developed previously to explain the steady flow of shear-thickening ones, whereby friction proliferates among compressive contacts at large particle stresses. We apply our model to shear reversal, and find good qualitative agreement with particle-level, discrete-element simulations whose results we also present.
European Commission Horizon 2020 (H2020) ERC (740269)
Royal Society (RP170002)
External DOI: https://doi.org/10.1103/physrevlett.123.214504
This record's URL: https://www.repository.cam.ac.uk/handle/1810/298889
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