Modelling of nonlinear creep and recovery behaviour of cortical bone

Lovrenić-Jugović, Martina and Tonković, Zdenko and Skozrit, Ivica (2011) Modelling of nonlinear creep and recovery behaviour of cortical bone. = Modelling of nonlinear creep and recovery behaviour of cortical bone. In: 10th International Conference on Fracture and Damage Mechanics, FDM2011, 19-21.09.2011., Dubrovnik; Croatia.

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Abstract

A new one-dimensional constitutive model for human cortical bone is proposed to simulate the viscoelastic-viscoplastic behaviour occurring during creep-recovery tests. The material parameters are determined by fitting experimental results of creep-recovery tests reported in the published literature. An efficient computational algorithm for the integration of the proposed constitutive model at the material point level is derived. The derived algorithm in conjunction with the Jacobian matrix is implemented in the finite element code ABAQUS. The model predictions are found to be in good agreement with the experimental data presented in literature. © (2012) Trans Tech Publications.

Item Type: Conference or Workshop Item (Paper)
Keywords (Croatian): Computational algorithm; Cortical bone; Creep-recovery test; Experimental data; Finite element codes; Finite element modelling; Human cortical bone; Material parameter; Model prediction; Non-linear creep; Viscoplastcity; ABAQUS; Algorithms; Bone; Computational efficiency; Constitutive models; Finite element method; Fracture; Jacobian matrices; Mechanics; Recovery; Creep
Subjects: TECHNICAL SCIENCE
Divisions: 200 Department of Engineering Mechanics > 210 Chair of Mechanics and Strength of Materials
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 27 Apr 2015 09:10
Last Modified: 05 Apr 2016 10:38
URI: http://repozitorij.fsb.hr/id/eprint/3977

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