Corresponding author. Advanced Microsystem Packaging and Nano-Mechanics Research Laboratory, Power Mechanical Engineering Dept., National Tsing-Hua University, 101 Sec. 2, Kuang-FuRd., Hsinchu. Taiwan 300, R. O. C.
Research assistant. Advanced Microsystem Packaging and Nano-Mechanics Research Laboratory, Power Mechanical Engineering Dept., National Tsing-Hua University, Taiwan.
An atomic-level analytical solution, together with a modified Morse potential, has been developed to estimate temperature-dependent thermal expansion coefficients (CTE) and elastic characteristics of bulk metals. In this study, inter-atomic forces are considered as a set of anharmonic oscillator networks which can be described by Morse potential, while the material properties can be defined by these inter-atomic forces; when temperature increases, the vibration of the anharmonic oscillator causes the phenomenon of temperature-dependent material properties. The results of analysis showed that the original Morse potential can give a reasonable prediction of the thermal expansion coefficients and elastic constants of metals at room temperature; however, it has difficulties in giving an accurate result at low and high temperatures. Therefore, to overcome the deficiency, a temperature-dependent modified Morse potential is developed and validated with various metals.
Chiang, K., Chou, C., Wu, C., Huang, C., Yew, M. (2008). Analytical solution for estimation of temperature-dependent material properties of metals using modified morse potential. Computer Modeling in Engineering & Sciences, 37(1), 85-96. https://doi.org/10.3970/cmes.2008.037.085
Vancouver Style
Chiang K, Chou C, Wu C, Huang C, Yew M. Analytical solution for estimation of temperature-dependent material properties of metals using modified morse potential. Comput Model Eng Sci. 2008;37(1):85-96 https://doi.org/10.3970/cmes.2008.037.085
IEEE Style
K. Chiang, C. Chou, C. Wu, C. Huang, and M. Yew "Analytical Solution for Estimation of Temperature-Dependent Material Properties of Metals Using Modified Morse Potential," Comput. Model. Eng. Sci., vol. 37, no. 1, pp. 85-96. 2008. https://doi.org/10.3970/cmes.2008.037.085
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