From nanoscale cohesion to macroscale entanglement: Opportunities for designing granular aggregate behavior by tailoring grain shape and interactions

Jaeger, Heinrich M.; Miskin, Marc Z.; Waitukaitis, Scott

doi:10.1063/1.4811858

Cited by 2 publications

(1 citation statement)

References 16 publications

(21 reference statements)

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“…We suspect this is due to perfusion pressure driven from retinal and uveal vessels [107]. Given the rapid mouse heartbeat [108,109], ocular pulsing may drive strain stiffening depending on the structure of interparticle interactions [110].…”

Section: Discussionmentioning

confidence: 99%

Promoting convergence: The Phi spiral in abduction of mouse corneal behaviors

et al. 2014

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Why do mouse corneal epithelial cells display spiraling patterns? We want to provide an explanation for this curious phenomenon by applying an idealized problem solving process. Specifically, we applied complementary line-fitting methods to measure transgenic epithelial reporter expression arrangements displayed on three mature, live enucleated globes to clarify the problem. Two prominent logarithmic curves were discovered, one of which displayed the ϕ ratio, an indicator of an optimal configuration in phyllotactic systems. We then utilized two different computational approaches to expose our current understanding of the behavior. In one procedure, which involved an isotropic mechanics-based finite element method, we successfully produced logarithmic spiral curves of maximum shear strain based pathlines but computed dimensions displayed pitch angles of 35° (ϕ spiral is ∼17°), which was altered when we fitted the model with published measurements of coarse collagen orientations. We then used model-based reasoning in context of Peircean abduction to select a working hypothesis. Our work serves as a concise example of applying a scientific habit of mind and illustrates nuances of executing a common method to doing integrative science. © 2014 Wiley Periodicals, Inc. Complexity 20: 22–38, 2015

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Section: Discussionmentioning

confidence: 99%

Promoting convergence: The Phi spiral in abduction of mouse corneal behaviors

et al. 2014

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Discrete Element Method Simulations for Complex Granular Flows

Guo

Curtis

2015

Annu. Rev. Fluid Mech.

250

106

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This review article focuses on the modeling of complex granular flows employing the discrete element method (DEM) approach. The specific topic discussed is the application of DEM models for the study of the flow behavior of nonspherical, flexible, or cohesive particles, including particle breakage. The major sources of particle cohesion—liquid induced, electrostatics, van der Waals forces—and their implementation into DEM simulations are covered. These aspects of particle flow are of great importance in practical applications and hence are the significant foci of research at the forefront of current DEM modeling efforts. For example, DEM simulations of nonspherical grains can provide particle stress information needed to develop constitutive models for continuum-based simulations of large-scale industrial processes.

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From nanoscale cohesion to macroscale entanglement: Opportunities for designing granular aggregate behavior by tailoring grain shape and interactions

Cited by 2 publications

References 16 publications

Promoting convergence: The Phi spiral in abduction of mouse corneal behaviors

Promoting convergence: The Phi spiral in abduction of mouse corneal behaviors

Discrete Element Method Simulations for Complex Granular Flows

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