A combined experimental and numerical scheme for the determination of contact loads between cemented particles
Date of Original Version
A hybrid experimental/numerical scheme has been developed to compute the complete stress field within cemented particles subject to normal loads. The method combines a theoretical solution of the problem with the experimental technique of photoelasticity. The resulting over-determined set of equations are solved using the Newton-Raphson method and non-linear least squares techniques. In the analysis, the stress distribution between the center and the edge of the cement bond is approximated with a power law equation. Excellent agreement, within 10%, between the experimental and computed contact loads has been shown. In addition to the contact load, the entire stress field in the particle can also be reproduced with reasonable accuracy.
Mechanics of Materials
Sienkiewicz, F., A. Shukla, M. Sadd, Z. Zhang, and J. Dvorkin. "A combined experimental and numerical scheme for the determination of contact loads between cemented particles." Mechanics of Materials 22, 1 (1996): 43-50. doi:10.1016/0167-6636(95)00021-6.