Abstract
This paper presents the application of the Cell Method (CM) to the static analysis of 3D structures obtained from micro-computed tomography reconstructions of trabecular bone. The CM is a recently introduced numerical method, based on a direct discrete formulation of equilibrium equations, which is particularly promising for the analysis of complex structures. In fact, due to the direct discrete approach employed, no restriction is imposed by differentiability conditions and the characteristic length of the elementary cell of the discretization can be of the same order of magnitude as the heterogeneities of the structure. The same 3D microstructures used for the numerical simulations were reproduced by means of a rapid prototyping process, by selective laser sintering of polyamide powder. The compression elastic modulus of the replicas was experimentally determined and used as parameter for comparison with the simulations results. The experimental values are in good agreement with the numerical ones, thus validating the methodology employed.
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References
Consensus Development Conference (1993) Diagnosis, prophylaxis and treatment of osteoporosis. AM J Med 94:646–650
Kleerekoper M, Villaneva AR, Stanciu J, Sudhaker Rao D, Parfitt AM (1985) The role of three dimensional trabecular microstructure in the pathogenesis of vertebral compression fractures. Calcif Tissue Int 37(Suppl):S594–S597
Uchiyama T, Tanizawa T, Muramatsu H, Endo N, Takahashi HE, Hara T (1999) Three-dimensional microstructural analysis of human trabecular bone in relation to its mechanical properties. Bone 25(4): 487–491
Cowin SC (1985) The relationship between the elasticity tensor and the fabric tensor. Mech Mater 4:137-147
Brear K, Currey JD, Raines S, Smith KJ (1988) Density and temperature effects on some mechanical properties of cancellous bone. Eng Med 17: 163–167
Hodgskinson R, Currey JD (1990) The effect of variation in structure on the Young’s modulus of cancellous bone: a comparison of human and non-human material. J Eng Med PIME part H 204:115–121
Müller R, Hildebrand T, Rüegsegger P (1994) Non-invasive bone biopsy: a new method to analyse and display the three-dimensional structure of trabecular bone. Phys Med Biol 39:145–164
Zohdi TD, Wriggers P (2001) Computational micro-macro material testing. Arch Comput Methods Eng 8:131–228
Yeh OC, Keaveny TM (1999) Biomechanical effects of intraspecimen variations in trabecular architecture: a three-dimensional finite element study. Bone 25:223–228
Van Rietbergen B, Weinans H, Huiskes R, Odgaar A (1995) A new method to determine trabecular bone elastic properties and loading using micromechanical finite-element models. J Biomech 28:69–81
Van Rietbergen B, Odgaar A, Kabel J, Huiskes R (1996) Direct mechanics assessment of elastic symmetries and properties of trabecular bone architecture. J Biomech 29:1653–1657
Ulrich D, van Rietbergen B, Weinans H, Rüegsegger P (1998) Finite element analysis of trabecular bone structures: a comparison of image-based meshing techniques. J Biomech 31:1187–1192
Niebur GL, Feldstein MJ, Yuen JC, Chen TJ, Keaveny TM (2000) High resolution finite element models with tyssue strength asymmetry accurately predict failure of trabecular bone. J Biomech 33:1575–1583
Hommiga J, Huiskes R, Van Rietbergen B, Rüegsegger P, Weinans H (2001) Introduction and evaluation of a gray-value voxel conversion technique. J Biomech 34:513–517
Roux S (1990) Continuum and discrete description of elasticity. In: Herrmann HJ, Roux S (eds) Statistical models for the fracture of disordered media. Elsevier, North Holland, pp. 109–113
Van Rietbergen B, Weinans H, Huiskes R (1996) Computational strategies for iterative solutions of large FEM applications employing voxel data. Int J Num Methods Eng 39:2743–2767
Tonti E (2001) A direct discrete formulation of field laws: the cell method. CMES, Comput Model Eng Sci 2:237–258
Prendergast PJ, Huiskes R (1995) The biomechanics of Wolff’s law: recent advances. J Med Sci 164(2):152–154
Kak AC, Slaney M (1988) Principles of computerized tomographic imaging. IEEE Press, New york
Odgaard A (1997) Three-dimensional methods for quantification of cancellous bone architecture. Bone 4:315–328
Smith T (1999) Layer manufacture. A new form of 3-D visualization for artists. http://www.agocg.ac.uk/train/hitch/hitch2.pdf
Borah B, Gross GJ, Dufresne TE, Smith TS, Cockman MD, Chmielewski PA, Lundy MW, Hartke JR, Sod EW (2001) Three-dimensional microimaging (MRμI and μCT), finite element modeling, and rapid prototyping provide unique insights into bone architecture in osteoporosis. Anat Rec (New Anat) 206: 101–110
Cosmi F, Dreossi D, Scalici M (2004) Bone sintering for strength assessment: first results in BOSSA project. Trans FAMENA 28:35–42
Cosmi F (2001) Numerical solution of Plane elasticity problems with the cell method. CMES, Comput Model Eng Sc 2:365–372
Cosmi F (2005) Elastodynamics wih the cell method. CMES, Comput Model Eng Sci 8:191–200
Algebraic Formulation of Physical Fields (2006) http://www.dic.units.it/perspage/discretephysics/
Cosmi F, Di Marino F (2001) Modelling of the mechanical behaviour of porous materials: a new approach. Acta Bioeng Biomech 3:55–65
Cosmi F (2004) Two-dimension estimate of effective properties of solid with random voids. Theor Appl Fract Mech, Elsevier Sci 42:183–186
Cosmi F (2003) Numerical modeling of porous materials mechnical behaviour with the cell method. In: Proceedings of Second MIT conference on computational fluid Massachusetts Institute of Technology, and solid mechanics, 17–20, June 2003, Cambridge, MA, USA
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Cosmi, F., Dreossi, D. Numerical and experimental structural analysis of trabecular architectures. Meccanica 42, 85–93 (2007). https://doi.org/10.1007/s11012-006-9024-8
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DOI: https://doi.org/10.1007/s11012-006-9024-8