A Damaging-viscoelastic-viscoplastic Constitutive Model for Human Vertebral Trabecular Bone Applied to Experimental Specimen Response

TION um damage mechanics (CDM) models, particularly when into finite element models, offer the potential for g the damage accumulation process and the risk of eal skeletal structures. For example, Zysset and Curnier ite general inviscid, isotropic damage model to cancellous the central assumption that plastic flow and damage n are intrinsically related [1]. With evidence from our [2] and others that time-dependence [3] and damage 4] are significant in trabecular bone and a lack of specific l basis for assuming an intrinsic link between plastic flow , a unified constitutive model was developed to describe nd inelastic (viscous, plastic, and damage) behavior of ebral trabecular bone. This constitutive model was in finite element simulations using a commercial finite lysis (FEA) solver (ABAQUS, ABAQUS, Inc.), along ters determined from experimental data and the literature, e mechanical response of trabecular bone.