Effect of Surfaces on the Distribution of Orientations of Rod-Like Particles Conference Paper uri icon

abstract

  • The rheology and mechanical properties of suspensions, liquid-crystalline materials, and fiber-reinforced composites are determined to large extent by the concentration profile and the configuration distribution of the particles. The orientation distributions of non-Brownian, rigid rods in suspension are determined numerically for both confined and unbounded suspensions. The effects of fiber concentration, fiber length, and cylindrical container walls on the orientation state of a suspension of otherwise randomly oriented and distributed rod- like particles are examined. Experimental determination of the distribution of orientations in a suspension confined to a cylindrical vessel is used to validate the results of our computer simulation. For unbounded systems, the simulations correctly predict the theoretical departure from isotropic. For systems confined into cylinders the rods are not completely …

publication date

  • January 1, 2003