Issue 41, 2017

Design of yield-stress fluids: a rheology-to-structure inverse problem

Abstract

We present a paradigm for the design of yield-stress fluids, using six archetypal materials for demonstration. By applying concepts of engineering design, we outline a materials design paradigm that includes (i) morphological organization based on jammed versus networked microstructures, (ii) collected scaling laws for predictive design, (iii) low-dimensional descriptions of function-valued flow data, (iv) consideration of secondary properties including viscous behavior, and (v) a strategy for material concept synthesis based on the juxtaposition of microstructures. By explicitly specifying these design strategies, we seek to create an ontology and database for the engineering of yield-stress fluids. Our proposed design strategy increases the likelihood of finding an optimal material and prevents design fixation by considering multiple material classes to achieve a desired rheological performance. This flips the typical structure-to-rheology analysis to become the inverse: rheology-to-structure with multiple possible materials as solutions.

Graphical abstract: Design of yield-stress fluids: a rheology-to-structure inverse problem

Supplementary files

Article information

Article type
Paper
Submitted
18 Apr 2017
Accepted
10 Sep 2017
First published
11 Sep 2017

Soft Matter, 2017,13, 7578-7594

Design of yield-stress fluids: a rheology-to-structure inverse problem

A. Z. Nelson and R. H. Ewoldt, Soft Matter, 2017, 13, 7578 DOI: 10.1039/C7SM00758B

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