Dubey, Devendra K.; Tomar, Vikas
Microstructure dependent dynamic fracture analyses of trabecular bone based on nascent bone atomistic simulations
MECHANICS RESEARCH COMMUNICATIONS, 35:24-31, JAN-MAR 2008

Trabecular bone fracture is closely related to the trabecular architecture, microdamage accumulation, and bone tissue properties. Primary constituents of trabecular tissue are hydroxyapatite (HA) mineralized type-I collagen fibers. In this research, dynamic fracture in two dimensional (2-D) micrographs of ovine (sheep) trabecular bone is modeled using the mesoscale cohesive finite element method (CFEM). The bone tissue fracture properties are obtained based on the atomistic strength analyses of a type-I collagen + HA interfacial arrangement using molecular dynamics (MD). Analyses show that the presented framework is capable of analyzing the architecture dependent fracture in 2-D micrographs of trabecular bone. (c) 2007 Elsevier Ltd. All rights reserved.

DOI:10.1016/j.mechrescom.2007.10.011

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