ArticleProceedings of the National Academy of Sciences of the United States of America2026
Disorder-induced stress-flow misalignment in soft glassy materials revealed using multidirectional shear.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Disorder-induced stress-flow misalignment in soft glassy materials revealed using multidirectional shear.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
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5 authors.
Funding
Abstract
Controlling the mechanical response of soft glassy materials-such as emulsions, foams, and colloidal suspensions-is key for many industrial processes. While their steady-state flow behavior is reasonably well understood, their response to complex flow histories, as encountered in operations like pumping or mixing, remains poorly known. Using a custom multiaxis shear apparatus that enables arbitrary changes in flow direction, we investigate how shear history influences the mechanical behavior of a model soft glassy system. We uncover a transient shear response orthogonal to the applied shear direction, together with an anisotropic yield surface. These effects point to an underlying anisotropic distribution of internal stresses imprinted by previous deformation. To rationalize this behavior, we use a mesoscopic elastoplastic model, demonstrating that local mechanical disorder governs the emergence of macroscopic stress-flow misalignment. Our findings offer a route to experimentally probe the distribution of local yield stresses in soft glassy materials.
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