抄録
Polystyrene microspheres were a selected material to examine for the two-dimensional (2D) aggregation. The 2D aggregated clusters were confined between the two fiber cantilevers which can slide and move the aggregates in the lateral direction. The compressive yield stress was directly measured during experiment by quantitative image analysis on the optical microscope. Particle positions of all particles were located by a Discrete Element Method (DEM). The 2D mechanical properties were examined for the particle size scaling behaviors as a function of particle area fraction and the average particle coordination number. These studies were conducted to apply the yield stress of 2D aggregates, and compared to the yield stress of concentrated flocculated suspensions of the three-dimensional (3D) mechanical network
