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Finite Element Modeling of the Elastic Modulus of Ti6Al4V Scaffold Fabricated by SLM
In recent years, porous materials have been attracted by biomedical engineers as load bearing scaffolds due to their mechanical properties which can be similar to those of body tissues. Among such materials, cellular sandwich structures are of more important because of their regular micro-structure. One can design the internal microstructure to achieve the desired mechanical properties. The elastic modulus of a scaffold is one of the most important mechanical properties in practical applications. In this paper, a beam finite element model is developed to predict the elastic modulus of a Ti6Al4V scaffold with regular micro-structure fabricated by Selective Laser Melting (SLM). At first, the mechanical properties of annealed Ti6Al4V are attributed to the struts material. But the obtained elastic modulus is not satisfactory in comparison with experimental one. In the second model, the mechanical properties of Ti6Al4V fabricated by SLM with the same processing parameters as those applied to manufacture the scaffold are assigned to the struts material. Using this model, the predicted elastic modulus of the scaffold is in good agreement with experimental one.
Finite Element Modeling of the Elastic Modulus of Ti6Al4V Scaffold Fabricated by SLM
In recent years, porous materials have been attracted by biomedical engineers as load bearing scaffolds due to their mechanical properties which can be similar to those of body tissues. Among such materials, cellular sandwich structures are of more important because of their regular micro-structure. One can design the internal microstructure to achieve the desired mechanical properties. The elastic modulus of a scaffold is one of the most important mechanical properties in practical applications. In this paper, a beam finite element model is developed to predict the elastic modulus of a Ti6Al4V scaffold with regular micro-structure fabricated by Selective Laser Melting (SLM). At first, the mechanical properties of annealed Ti6Al4V are attributed to the struts material. But the obtained elastic modulus is not satisfactory in comparison with experimental one. In the second model, the mechanical properties of Ti6Al4V fabricated by SLM with the same processing parameters as those applied to manufacture the scaffold are assigned to the struts material. Using this model, the predicted elastic modulus of the scaffold is in good agreement with experimental one.
Finite Element Modeling of the Elastic Modulus of Ti6Al4V Scaffold Fabricated by SLM
Ravari, M. R. Karamooz (author) / Kadkhodaei, M. (author)
Fifth Biot Conference on Poromechanics ; 2013 ; Vienna, Austria
Poromechanics V ; 1021-1028
2013-06-18
Conference paper
Electronic Resource
English
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