Series expansions in powers of the concentration p for elastic and other susceptibilities of randomly diluted elastic networks have been generated for a bond-bending model on a honeycomb lattice up to 13th order, and for the central-force model on a triangular lattice up to 22nd order, in p. Critical exponents for both models and the critical threshold of the central-force problem have been estimated by Padé-approximant-analysis techniques. We obtain exponent estimates that are consistent with scaling relations and other calculations. For the bond-bending model, the effective splay elastic constant scales like ${\mathit{L}}_{\mathrm{sp}}^{\mathrm{-}\mathrm{\phi }}$/ν with ${\mathrm{\phi }}_{\mathrm{sp}}$=1.20±0.015. For central-force elastic percolation, we find β+γ=1.9±0.2 and ν=1.1±0.2.

• Received 4 November 1991

DOI:https://doi.org/10.1103/PhysRevB.45.7084