%0 Journal Article %T A Model for Bone Strength and Osteoporotic Fractures %A Gemunu H. Gunaratne %A Chamith S. Rajapaksa %A Kevin E. Bassler %A Kishore K. Mohanty %A Sunil J. Wimalawansa %J Quantitative Biology %D 2000 %I arXiv %X Inner porous regions play a critical role in the load bearing capability of large bones.We show that an extension of disordered elastic networks [Chung et. al., Phys. Rev. B, {\bf 54}, 15094 (1996)] exhibits analogs of several known mechanical features of bone. The "stress-backbones" and histograms of stress distributions for healthy and weak networks are shown to be qualitatively different. A hereto untested relationship between bone density and bone strength is presented. %U http://arxiv.org/abs/cond-mat/0009221v2