Modal Analysis of Al-Al2O3 FG Thick Plate Using Graded FEM

P. S. Ravi Kumar*, P. Nanda Kumar **, G. Ranga Janardhana***
*-** Department of Mechanical Engineering, N.B.K.R. Institute of Science and Technology, Vidyanagar, Nellore, India
*** Department of Mechanical Engineering, JNTUA University College of Engineering, Ananthapuramu, India.
Periodicity:August - October'2019
DOI : https://doi.org/10.26634/jfet.15.1.16268

Abstract

Obtaining natural frequencies and accompanying mode shapes are key to acoustic design of structures such as aircraft bodies. The design of such structures using Functionally Graded (FG) thick plates is quite complex because the behaviour is not often properly predicted. Hence in this paper, it is proposed to apply finite element analysis procedure for obtaining the dynamic flexure behaviour of functionally graded thick plates. The first order shear deformation theory which is a very good start up for analyzing bending behaviour for thick plates was followed. The graded plates are made up of Al and Al2O3 combination. Graded Finite Element Method (FEM), which accommodates for continuous variation in material properties of the elements was resorted to for the numerical analysis. MATLAB code was tailored for obtaining free vibration solutions, accommodating the material property variation in thickness direction. A parametric study with different power-law indices, thickness ratios and support conditions on non-dimensional frequency parameter was performed.

Keywords

FG Thick Plates; Vibration behaviour; Graded FEM; Power Law; MATLAB.

How to Cite this Article?

Kumar, P., S., R., Kumar, P., N., and Janardhana, G., R. (2019). Modal Analysis of Al-Al2O3FG Thick Plate Using Graded FEM. i-manager’s Journal on Future Engineering and Technology , 15(1), 18-29. https://doi.org/10.26634/jfet.15.1.16268

References

[1]. Afkar, A., & Kamari, M. N. (2016). Analysis of free and forced vibration of FGM rectangular floating plates (in contact with fluid) using the theory of Mindlin. Journal of Materials and Environmental Science, 7(9), 3264-3277.
[3]. Blevins, R., D. (1979). Formulas for Natural Frequencies and Mode Shapes. Van Nostrand Reinhold Company.
[4]. Daouadji, T. H., Tounsi, A., Hadji, L., Henni, A. H., & Bedia, E. A. A. (2012). A theoretical analysis for static and dynamic behavior of functionally graded plates. Materials Physics and Mechanics, 14(2), 110-128.
[9]. Kumar, A., & Arakerimath, R. R. (2015). A Review and modal analysis of stiffened plate. International Research Journal of Engineering and Technology (IRJET), 2(8), 581- 588.
[10]. Kumar, P. R., Kumar, P. N., & Janardhana, G. R. (2017). Static analysis of Al-ZrO FG thick plate using graded FEM. Materials Today: Proceedings, 4(8), 8117- 8126.
[11]. Mahajan, P. P., & Pawar, P., M. (2013). Flexural analysis of functionally graded plate using ANSYS. International Journal of Science and Research (Online), 2319-7064.
[12]. Mahamood, R. M., Akinlabi, E. T., Shukla, M., & Pityana, S. (2012). Functionally graded material: An overview. In Proceedings of the World Congress on Engineering (Vol. 3).
[13]. Miyamoto, Y., Kaysser, W. A., Rabin, B. H., Kawasaki, A., & Ford, R. G. (1999). Functionally Graded Materials: Design, Processing and Applications. New York: Springer Science and Business Media.
[15]. Onate, E. (2012). Structural Analysis with the Finite Element Method - Linear Statics, (Vol. 2) Springer.
[16]. Owunna, I., Ikpe, A. E., Satope, P., & Ikpe, E. (2016). Experimental modal analysis of a flat plate subjected to vibration. American Journal of Engineering Research (AJER), 5(6), 30-37.
[17]. Ramu, I, & Mohanty, S., C. (2014a). Vibration and parametric instability of functionally graded material plates. Journal of Mechanical Design and Vibration, 2(4), 102-110.
[22]. Solanki, M., K, Kumar, R., & Singh, J. (2016). Free vibration analysis of FGM plates. International Journal of Innovations in Engineering & Technology, l6 (3), 351-358.
[25]. Ventsel, E., Krauthammer, T., & Carrera, E. (2002). Thin Plates and Shells: Theory, Analysis, and Applications. New York: Marcel Dekker Inc.
[26]. Wang, C. M., Reddy, J. N., & Lee, K. H. (Eds.). (2000). Shear Deformable Beams and Plates: Relationships with Classical Solutions. Amsterdam: Elsevier.
If you have access to this article please login to view the article or kindly login to purchase the article

Purchase Instant Access

Single Article

North Americas,UK,
Middle East,Europe
India Rest of world
USD EUR INR USD-ROW
Pdf 35 35 200 20
Online 35 35 200 15
Pdf & Online 35 35 400 25

Options for accessing this content:
  • If you would like institutional access to this content, please recommend the title to your librarian.
    Library Recommendation Form
  • If you already have i-manager's user account: Login above and proceed to purchase the article.
  • New Users: Please register, then proceed to purchase the article.