Three-Dimensional Finite Element Modeling of Thermomechanical Problems in Functionally Graded Hydroxyapatite-Titanium PlateReportar como inadecuado




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Mathematical Problems in Engineering - Volume 2014 2014, Article ID 371462, 20 pages -

Research Article

Faculty of Manufacturing Engineering, Universiti Malaysia Pahang, 26600 Pekan, Pahang, Malaysia

Department of Nuclear Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia

Department of Aerospace Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia

Received 14 November 2013; Revised 14 February 2014; Accepted 14 February 2014; Published 10 April 2014

Academic Editor: Kim Meow Liew

Copyright © 2014 S. N. S. Jamaludin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The composition of hydroxyapatite HA as the ceramic phase and titanium Ti as the metallic phase in HA-Ti functionally graded materials FGMs shows an excellent combination of high biocompatibility and high mechanical properties in a structure. Because the gradation of these properties is one of the factors that affects the response of the functionally graded FG plates, this paper is presented to show the domination of the grading parameter on the displacement and stress distribution of the plates. A three-dimensional 3D thermomechanical model of a 20-node brick quadratic element is used in the simulation of the thermoelastic behaviors of HA-Ti FG plates subjected to constant and functional thermal, mechanical, and thermomechanical loadings. The convergence properties of the present results are examined thoroughly in order to assess the accuracy of the theory applied and to compare them with the established research results. Instead of the grading parameter, this study reveals that the loading field distribution can be another factor that reflects the thermoelastic properties of the HA-Ti FG plates. The FG structure is found to be able to withstand the thermal stresses while preserving the high toughness properties and thus shows its ability to operate at high temperature.





Autor: S. N. S. Jamaludin, S. Basri, Ahmad Hussain, Dheya Shujaa Al-Othmany, F. Mustapha, and D. M. Nuruzzaman

Fuente: https://www.hindawi.com/



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