203 citations · 2.5k across the 73 of their papers we have counts for
8 papers · 1 filter
Photoelastic force measurements in granular materials
Karen E. Daniels, Jonathan E. Kollmer, James G. Puckett
Photoelastic techniques are used to make both qualitative and quantitative measurements of the forces within idealized granular materials. The method is based on placing a birefrin…
Sounds of Failure: Passive Acoustic Measurements of Excited Vibrational Modes
Theodore A. Brzinski, Karen E. Daniels
Granular materials can fail through spontaneous events like earthquakes or brittle fracture. However, measurements and analytic models which forecast failure in this class of mater…
Capillary fracture of ultrasoft gels: heterogeneity and delayed nucleation
Marion Grzelka, Joshua B. Bostwick, Karen E. Daniels
A droplet of surfactant spreading on an ultrasoft ( Pa) gel substrate will produce capillary fractures at the gel surface; these fractures originate at the contact-…
Deformation of an Elastic Substrate Due to a Resting Sessile Droplet
Aaron Bardall, Karen E. Daniels, Michael Shearer
On a sufficiently-soft substrate, a resting fluid droplet will cause significant deformation of the substrate. This deformation is driven by a combination of capillary forces at th…
Topological and geometric measurements of force chain structure
Chad Giusti, Lia Papadopoulos, Eli T. Owens +2
Developing quantitative methods for characterizing structural properties of force chains in densely packed granular media is an important step toward understanding or predicting la…
Nonaffine deformation under compression and decompression of a flow-stabilized solid
Carlos P. Ortiz, Robert Riehn, Karen E. Daniels
Understanding the particle-scale transition from elastic deformation to plastic flow is central to making predictions about the bulk material properties and response of disordered…