Nonuniversality of elastic exponents in random bond-bending networks
Nonuniversality of elastic exponents in random bond-bending networks
We numerically investigate the rigidity percolation transition in two-dimensional flexible, random rod networks with freely rotating cross links. Near the transition, networks are dominated by bending modes and the elastic modulii vanish with an exponent f=3.0+/-0.2, in contrast with central force percolation which shares the same geometric exponents. This indicates …