Anisotropic nonlinear elasticity in a spherical-bead pack: influence of the fabric anisotropy.

@article{Khidas2010AnisotropicNE,
  title={Anisotropic nonlinear elasticity in a spherical-bead pack: influence of the fabric anisotropy.},
  author={Yacine Khidas and Xiaoping Jia},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2010},
  volume={81 2 Pt 1},
  pages={021303}
}
Stress-strain measurements and ultrasound propagation experiments in glass bead packs have been simultaneously conducted to characterize the stress-induced anisotropy under uniaxial loading. These measurements realized, respectively, with finite and incremental deformations of the granular assembly, are analyzed within the framework of the effective-medium theory based on the Hertz-Mindlin contact theory. Our work shows that both compressional and shear wave velocities and consequently the… CONTINUE READING