Rheology of dense fiber suspensions: Origin of yield stress, shear thinning, and normal stress differences

Rheology of bi-disperse dense fiber suspensions

“…Moreover, the hydrodynamic, contact, and non-contact contribution to the shear stress as a function of shear rate can be found in our previous manuscript. 27…”

“…This decision was based on the model's ability to effectively account for the influence of roughness, flexibility, and aspect ratio on jamming rheology, as demonstrated in our previous publications. 13,14,27 In our current study, as we have extended our prior model to include bi-dispersity, we have opted to retain the same modified Maron–Pierce law utilized in our previous research to maintain consistency. The following form of the Maron–Pierce law is used to fit the data in Fig.…”

“…25,26 Recently, we have developed a numerical model by incorporating short-range interactions via attractive and repulsive interactions and contact interactions in the dense fiber suspension. 12–14,27 The model presented in this study effectively describes the rheological characteristics of dense fiber suspensions as found in experimental settings. 19,20 These characteristics include the existence of a yield stress, shear thinning rheology, and normal stress differences.…”