title: Splitting fracture in bovine bone using a porosity-based spring network model.
abstract: We examine the specific role of the structure of the network of pores in plexiform bone in its fracture behaviour under compression. Computed tomography scan images of the sample pre- and post-compressive failure show the existence of weak planes formed by aligned thin long pores extending through the length. We show that the physics of the fracture process is captured by a two-dimensional random spring network model that reproduces well the macroscopic response and qualitative features of fracture paths obtained experimentally, as well as avalanche statistics seen in recent experiments on porcine bone.
authors.affiliation: Department of Applied Mechanics, Indian Institute of Technology-Madras, Chennai 600036, India.
authors.forename: Ashwij
authors.identifier: 0000-0001-9758-0395
authors.initials: A
authors.lastname: Mayya
authors.affiliation: Department of Applied Mechanics, Indian Institute of Technology-Madras, Chennai 600036, India.
authors.forename: P
authors.initials: P
authors.lastname: Praveen
authors.affiliation: Department of Applied Mechanics, Indian Institute of Technology-Madras, Chennai 600036, India anuban@iitm.ac.in.
authors.forename: Anuradha
authors.identifier: 0000-0002-4775-1026
authors.initials: A
authors.lastname: Banerjee
authors.affiliation: The Institute of Mathematical Sciences, C.I.T. Campus, Taramani, Chennai 600113, India.|Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India.
authors.forename: R
authors.initials: R
authors.lastname: Rajesh
mesh_terms: D000818:Animals; D002417:Cattle; D050723:Fractures, Bone / Q000000981:diagnostic imaging / Q000378:metabolism* / Q000473:pathology / Q000503:physiopathology*; D008954:Models, Biological; D014057:Tomography, X-Ray Computed
keywords: cortical bone; lattice model; mechanical behaviour; porosity network