Estimating the Strength of an Elastic Network Using Linear Response
Abstract
Disordered networks of fragile elastic elements have been proposed as a model for inner porous regions of large bones [Gunaratne et.al., cond-mat/0009221]. In numerical studies, weakening of such networks is seen to be accompanied by reductions in the fraction of load carrying bonds. This observation is used to show that the ratio of linear responses of networks to DC and AC driving can be used as a surrogate for their strength. The possibility of using as a non-invasive diagnostic of osteoporotic bone is discussed.
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